Guru Chökyi Wangchuk
Guru Chökyi Wangchuk (Wyl. gu ru chos kyi dbang phyug) aka Guru Chöwang (1212-1270) — the second of five sovereign terma revealers and a speech emanation of King Trisong Detsen. Among his revelations is the practice of Lama Sangdü.
- Dudjom Rinpoche, The Nyingma School of Tibetan Buddhism, Its Fundamentals and History, trans. and ed. Gyurme Dorje (Boston: Wisdom, 1991), pages 760-770.