1. Amram, Y. (2009), “The contribution of emotional and spiritual intelligences to effective business leadership”, Doctoral dissertation, Institute of Transpersonal Psychology, available at: http://yosiamram.net/docs/EI_and_SI_in_Leadership_Amram_Dissert.pdf (accessed 25 October 2012).
2. The development and preliminary validation of the integrated spiritual intelligence scale (ISIS),2007