Bibliography
- Teachings from the Mani retreat, Chenrezig Institute, December 2000 (2001) by Shramana Lama Zopa Rinpoche, ISBN 978-1-891868-10-8, Lama Yeshe Wisdom Archive downloadable
- Bucknell, Roderick & Stuart-Fox, Martin (1986). The Twilight Language: Explorations in Buddhist Meditation and Symbolism. Curzon Press: London. ISBN 0-312-82540-4
- Lopez, Donald (1998). Prisoners of Shangri-La: Tibetan Buddhism and the West. University of Chicago Press: Chicago. ISBN 0-226-49311-3.
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