37. Fry LW, Slocum JW. (2008). Maximizing the triple bottom line throughspiritual leadership. Organizational Dynamics; 37(1):86-99
38. Fry, L.W. (2003). "Toward a theory of spiritual leadership".The Leadership Quarterly,14(6), PP. 693-727.
39. Fry, L.W.; Vittuci, S.; Cedillo, M. (2005). "Spiritual leadership and army transformation: Theory measurement, and establishing a baseline". The Leadership Quarterly, 16(5), PP. 835-862
40. Kotler, J.P. (1996). "Leading change".Boston, Harvard Business School Press
41. Pfeffer, J; Giacalone, R; Jurkiewicz, C.L. (2003)."Business and the spirit".Handbook
42. Reave, Laura, ; Spiritual values and practices related to leadership effectiveness;, The Leadership Quarterly, 16, 2005, pp.655-687.