1-	Ahmed, M.H. (2013), Lean Transformation Guidance: Why Organizations Fail to Achieve and Sustain Excellence through Lean Improvement, International Journal of Lean Thinking, volume 1, issue 4.
2-	Aij, H.K., Visse, M. and Widdershoven, G.A., (2014), Lean Leadership: an Ethnographic Study, Leadership in Health Services, Volume 28, issue 2, pp. 119-134.
3-	Ballard, G. and Tommelein, I. (2012), Lean Management Methods for Complex Projects, The Engineering Project Organization Journal, Volume 2, Issue 1-2, pp. 85-96.
4-	Barker, R.A., (2002), On the Nature of Leadership. Lanham: University Press of America
5-	Begam, M.S., Sekkizhar, J. and Swamynathan, R. (2013), Current Trends on Lean Management- A Review, International Journal of Lean Thinking, volume 4, issue 2.
6-	Bennis, W. (1989), On Becoming a Leader, Addison-Wesley Publishing, Reading, MA.
7-	Bennis, W. (2003), Leaders: Strategies for Taking Charge, New York: HarperCollins Publishers, p. 78.
8-	Bhasin, S. (2011), Prominent Obstacles to Lean, International Journal of Productivity and Performance Management, volume 61, issue 4, pp. 403-425.
9-	Bhasin, S. (2012), An Important Change Strategy for Lean Success, Management Decisions, Volume 50, Issue 3, pp. 439-458.
10-	Bhasin, S. (2013), Impact of Corporate Culture on the adoption of the Lean principles, International Journal of Lean Six Sigma, volume 4, issue 2, pp. 118-140.
11-	Bodek, N. (2008), Leadership is Critical to Lean, Manufacturing Engineering Magazine.
12-	Bowen, B.D. and Weisberg, H.F. (1977), An Introduction to Survey Research and Data Analysis, San Francisco: W. H. Freeman and Company
13-	Byrne, A. (2012), The Lean Turnaround: How Business Leaders Use Lean Principles to Create Value and Transform Their Company, New York: McGraw-Hill.
14-	Chen, P.Y. and Popovich, P.M. (2002), Correlation: Parametric and nonparametric measures, Thousand Oakes, California: Sage Publications.
15-	Čiarnienė, R. and Vienažindienė, M. (2012), Lean Manufacturing: Theory and Practice, Economics and Mangement, Volume 17, Issue 2, pp. 726-732. 
16-	Cohen, J (1988), Statistical Power Analysis for Behavioral Sciences (Second Edition), Hillsdale, New Jersey: Erlbaum.
17-	Convis, G.L. and Liker, J.K. (2012), The Toyota Way to Lean Leadership: Achieving and Sustaining Excellence through Leadership Development, New York: McGraw-Hill.
18-	Dibia, I.K., Dhaka, H.N. and Onur, S. (2014), Lean “Leadership People Process Outcome” (LPPO) Implementation Model, Journal of Manufacturing Technology Management, Volume 25, Issue 5, pp. 694-711. 
19-	Dombrowski, U. and Mielke, T. (2013), Lean Leadership- Fundamental Principles and Their Application, Procedia CIRP, volume 7, pp. 569-574.
20-	Dombrowski, U. and Mielke, T. (2014), Lean Leadership- 15 Rules For a Sustainable Lean Implementation, Procedia CIRP, volume 17, pp. 565-570.
21-	Emiliani, M.L. (1998), Lean Behaviors, Management Decisions, volume 36, Issue 9, pp. 615-631.
22-	Emiliani, M.L. (2003), Linking Leaders’ Beliefs to Their Behaviours and Competencies, Management Decisions, volume 41, issue 9, pp. 893-910.
23-	Emiliani, M.L. and Stec, D.J. (2005), Leaders Lost in Transformation, Leadership and Organization Development Journal, Volume 26, Issue 5, pp. 370-387.
24-	Emiliani, M.L. (2007), Better Thinking Better Results: Case Study and Analyze of an Enterprise-Wide Lean Transformation, CLBM, LLC Wethersfield
25-	Emiliani M.L. (2008), Standardized Work for Executive Leadership, Leadership and Organization Development Journal, Volume 29, issue 1, pp. 29-46.
26-	Emiliani, M.L. and Emiliani, M. (2013), Music as a Framework to Better Understand Lean Leadership, Leadership & Organization Development Journal, Volume 34, issue 5, pp. 407-426.
27-	Found, P.A., Vandun, H.D. and Fei, F. (2009), Multi-Level Management and Leadership Skills in Lean Organizations, POMS 20th Annual Conference.
28-	Gelei, A., Losonci, D. and Matyusz, Z (2015), Lean Production and Leadership Attributes- The Case of Hungarian Production Managers, Journal of Manufacturing Technology Management, Volume 26, Issue 4, pp. 477-500.
29-	Gibbons, J.D. (1971), Nonparametric Statistical Inference, New York: McGraw-Hill.
30-	Gibbons, J.D. (1993), Nonparametric Measures of Association, Thousand Oaks: SAGE Publications, Inc.
31-	Goodridge, D., Westhorp, G., Rotter, T., Dobson, R. and Bath, B. (2015), Lean and Leadership practices: Development of an Initial Realist Program Theory, BMC Health Service Research, Volume 15.
32-	Gravetter, F. J., and Wallnau, L. B. (2007), Statistics for the behavior sciences (7th Edition), Belmont, CA: Wadsworth
33-	Habidin, N.F. and Yusof, S.M. (2013), Critical Success Factor of Lean Six Sigma For The Malaysian Automotive Industry, International Journal Of Lean Six Sigma, Volume 4, Issue 1, pp. 60-82.
34-	Halling, B. and Renstrom .J. (2014), Lean Leadership: A Matter of Dualism, International Journal of Human Resource and Management, Volume 14, Issue 4, pp. 242-253.
35-	Halling, B. and Wijk, K. (2013), Experienced Barriers to Lean in Swedish Manufacturing and Health Care, International Journal of Lean Thinking, Volume 4, Issue 2.
36-	Holm, H. (2010), Leadership for Lean operations, Frontiers in Leadership Research.
37-	Dibia, I.k., Dhakal, H.N. and Onuh, S. (2014), Lean “Leadership People Process Outcome (LPPO)” Implementation Model, Journal of Manufacturing Technology Management, Volume 25, Issue 5, pp. 694-711. 
38-	Iuga, M.V. and Kifor, C.V. (2013), Lean Manufacturing: The When, The Where, The Who, Revista Academiei Fortelor Terestre, volume 18, issue 4, pp. 404-410.
39-	Jadhav, JR., Manth, S.S., Rane, S.B. (2014), Exploring Barriers in Lean Implementation, International Journal of Lean Six Sigma, volume 5, issue 2, pp. 122-148.
40-	Johnson, R.S. (1993), TQM: The Mechanics of Quality Processes, Milwaukee, WI: ASQ Quality Press.
41-	Jordan J.A., Jr. and Michel, F.J. (2001), The Lean Company: Making the Right Choices, Society of Manufacturing Engineering (SME).
42-	Kalton, G. and Kasprzyk, D. (1982), Imputing for Missing Survey Responses, Proceedings of the Survey Research Methods Section, American Statistical Association, pp. 22-31. 
43-	Kaplan, R.S. and Norton, D.P. (1996), Linking the Balanced Scoreboard to Strategy, California Management Review, Volume 39, Issue 1, pp. 53-79.
44-	Kirby, K.E. (2015), Leadership Development in Support of Organizational Development, the RiceLeaders Program.
45-	Koenigsaecker, G. (2005), Leadership and the Lean Transformation: it’s the most important job facing today’s manager, Manufacturing Engineering, volume 135, issue 5. pp. L7-11.
46-	Liker, J.K. (2004), the Toyota Way: 14 Management Principles From the World’s Greatest Manufacturer, New York: McGraw-Hill.
47-	Liker, J.K. and Franz, J.K. (2011), The Toyota Way to Continuous Improvement: Linking Strategy and Operational Excellence to Achieve Superior Performance, McGraw-Hill Professionals.
48-	Liker, J.K. and Balle, M. (2013), Lean Managers Must Be Teachers, Journal of Enterprise Transformation, Volume 3, Issue 1, pp. 16-32.
49-	Ljungblom, M. (2012), A Comparative Study Between Developmental Leadership and Lean Leadership– Similarities and Differences, Management and Production Engineering Review, Volume 3, Issue 4, pp. 54–68.
50-	Mann, D. (2009), The Missing Link: Lean Leadership, Frontiers of Health Services Management, volume 26, issue 1, pp. 15-26.
51-	Marksberry P. and Hughes, S. (2011), The Role of the Executive in Lean: A Qualitative Thesis Based on the Toyota Productions System, International Journal of Lean Thinking, volume 2, issue 2.
52-	Marques de Sa, J.P. (2007), Applied Statistics Using SPSS, STATISTICA, MATLAB and R, New York: Springer.
53-	Maxwell, J.C. (1998), 21 Irrefutable Laws of Leadership, Thomas Nelson, Nashville, TN.
54-	McHugh, M.L. (2013), The Chi-square Test of Independence, Biochemia Medica, Volume 23, Issue 2, pp. 143-149.
55-	Miina, A. (2012), Lean Problem: Why Companies Fail with Lean Implementation, Management, Volume 2, Issue 5, pp. 232-250.
56-	Montaquila, J.M. and Ponikowski, C.H. (1993), Comparison of Methods for Imputing Missing Responses in an Establishment Survey, Proceedings on the Section on Survey Research Methods, American Statistical Association, pp. 446-451. 
57-	Montgomery, D.C. and Runger, G.C. (2003), Applied Statistics and Probability for Engineers, John Wiley and Sons.
58-	Murman E. et al. (2002), Lean Enterprise Value: Insights from MIT’s Aerospace Initiative, NewYork: Palgrave Macmillan.
59-	Pamfilie, R., Petcu, A.J. and Draghici, M. (2012), The Importance of Leadership in driving a strategic Lean Six Sigma Management, Conference, Procedia- Social and Behavioral Sciences, volume 58 (8th International Strategic Management), pp. 187-196.
60-	Parkes, A. (2015), Lean Management Genesis, Management, Volume 19, Issue 2, pp. 106-121.
61-	Patterson, K. and Winston, B.E. (2006), Integrative Definition of Leadership, International Journal of Leadership Studies, volume 1, issue 2, pp. 6-66.
62-	Poksinska, B., Swartling, D., Drotz, E. (2013), The Daily Work of Lean Leaders- Lessons from Manufacturing and Healthcare, Total Quality Management, volume 24, issue 8, pp. 886-898.
63-	Pyzdek, T. (2003), The Six Sigma Handbook- A Complete Guide for Green Belts, Black Belts, and Managers at All Levels, McGraw-Hill. 
64-	Radnor, Z.J, Holweg, M. and Waring, J. (2012), Lean in Healthcare: The Unfilled Promise?, Social Science & Medicine, Volume 74, Issue 3, pp. 364-371.
65-	Rost, J.C., (1993), Leadership for the Twenty-first Century. Westport, CT: Praeger
66-	Samuel, D., Found, P. and Williams, S.J. (2015), How Did the Publication Of the Book the Machine That Changed the World Change Management Thinking? Exploring 25 Years of Lean Literature, International Journal of Operations & Production Management, Volume 35, Issue 10, pp. 1386-1407. 
67-	Schwagerman, W.C., Ulmer, J.M. (2013), The A3 Lean Management and Leadership Thought Process, The Journal of Technology, Management, and Applied Engineering, volume 29, issue 4.
68-	Shook, J. (2010), How to Change a Culture: Lessons from NUMMI, MIT Sloan Management Review, volume 51, issue 2, pp. 62-69.
69-	Singh, J. and Singh, H. (2009), Kaizen Philosophy: A Review of Literature, The Icfai University Journal of Management, volume 8, issue 2, pp. 51-72.
70-	Testani, M.V. and Ramakrishnan, S. (2011), Lean Transformational Leadership Model: Leadership’s Role in Creating Lean Culture, Proceedings of the 61st Industrial Engineering Research Conference. 
71-	Womack, J., Jones, D.T. and Roos, D. (1990), The Machine That Changed the World, New York, N.Y.: Macmillan/Rawson Associates.
72-	Womack J., Jones, D.T. and Roos, D. (1996), Lean Thinking: Banish Waste and Create Wealth in Your Organization, Simon and Schuster.
73-	Woodbury, R.S. (1960), The Legend of Eli Whitney and Interchangeable Parts, Technology and Culture, volume 1, issue 3, pp. 235-253.