1. Alleman, H. C. (1936). New testament commentary: A general introduction to and a commentary on the books of the new testament. complete in one volume (Rev. ed.). The Muhlenberg Press.
2. Avolio, B. J., & Gardner, W. L. (2005). Authentic leadership development: Getting to the root of positive forms of leadership. Leadership Quarterly, 16(3), 315–338.
3. Avolio, B. J., Luthans, F., & Walumbwa, F. O., (2004). Authentic leadership: Theory-building for veritable sustained performance (Working Paper). Gallup Leadership Institute, University of Nebraska, Lincoln.
4. Barret, C. K. (1978). The Gosple According to St. John. 2nd Ed. Westminster.
5. Caldwell, C. and Dixon, R. D. (2010). Love, Forgiveness, and Trust: Critical Values of the Modern Leader. Journal
of Business Ethics, 93(1), 91–101.