Negi, J.S. བོད༌སྐད༌དང༌ལེགས༌སྦྱར༌གྱི༌ཚིག༌མཛོད༌ཆེན༌མོ། - New Delhi ; Central Institute of Higher Tibetan Studies , 1993. - 461 p. 26 cm. ISBN: 8190014935 Dewey Class. No.: STL 495.4 NEG