དཔྱད་གཞིའི་ཡིག་ཆ་ཁག།
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Dudjom Rinpoche. 2002. The Nyingma School of Tibetan Buddhism. Gyurme Dorje and Matthew Kapstein, trans. Boston: Wisdom, pp. 713-712.
Ra Yeshe Sengge. 2015. The All-Pervading Melodious Drumbeat; The Life of Ra Lotsawa. Bryan Cuevas, trans. New York: Penguin Classics, pp. 51-52, 81-82.
Roerich, George, trans. 1996. The Blue Annals. 2nd ed. Delhi: Motilal Banarsidas, pp. 156.