^"The Influence of the Epic of King Gesar of Ling on Chogyam Trungpa" by Robin Kornman. in Recalling Chogyam Trungpa, ed. Midal. Shambhala Publications, 2005. ISBN1-59030-207-9 pg. 363
^The Bon Religion of Tibet: The Iconography of a Living Tradition by Per Kvaerne. Shambhala Publications, 2001. ISBN1-57062-186-1 pg. 24)