Hetrick, Adam. "Hello! National Tour of 'The Book of Mormon', Starring GavinCreel and Jared Gertner, Launches Aug. 14 in Denver" playbill.com, August 14
Reiber”. Playbill. 23 April 2011閲覧。 ^ Hetrick, Adam (October 29, 2010). “GavinCreel to Lead Broadway Impact Concert Nov. 2”. playbill.com. 23 April 2011閲覧。
Quote – "Hindu stages of life approach (ashrama dharma)..." ^ see: Austin Creel (1975), "The Reexamination of Dharma in Hindu Ethics", Philosophy East and