Bibliography
Bell, Charles. 1931. Religions of Tibet. Oxford: Oxford University Press, p. 75.
Nyoshul Khenpo. 2005. A Marvelous Garland of Rare Gems. Richard Barron, trans. Junction City, California: Padma Publication, pp. 90-91.
Roerich, George, trans. 1996. The Blue Annals. 2nd ed. Delhi: Motilal Banarsidas, pp. 195-196 (where his name is given “'khrul zhig seng ge rgyal pa”).
Bstan 'dzin lung rtogs nyi ma. 2004. Snga 'gyur rdzogs chen chos 'byung chen mo. Beijing: China Tibetan Publishing House, pp. 229-230.