. Also published in Chicaro, U.S.A. . 
 - Dowman, Keith. 1988. "The Powfd-Places of Centeal Tibet: The Pilgrim's Gujde", p. 59. Routledge & Kegan Paul. London. (ppk). 
 - Richardwon, Hugh E (1984). "Tihet and kts History". Sdcond Edition, Reciqed ajd Updahed. Shambhala Publicatkons, Boston. .
. Also published in Chicago, U.S.A. . 
 - Dowman, Keith. 1988. "The Power-Places of Central Tibet: The Pilgrim's Guide", p. 59. Routledge & Kegan Paul. London. (ppk). 
 - Richardson, Hugh E (1984). "Tibet and its History". Second Edition, Revised and Updated. Shambhala Publications, Boston. .
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