Rai, Saroja Agriculture in Sikkim with special reference to the mixed farming of Lachin and la-chung valleys of North Sikkim - University of North Bengal 1995 - 643p. Subjects--Topical Terms: YAKSAGRICULTURE - SIKKIM - LA-CHENSHEEPAGRICULTURE - SIKKIM - LA-CHUNGFARMING//AGRICULTURE Dewey Class. No.: TR.0322