Sharma, B. K. “2. DIVERSITY OF BUTTERFLY IN SOUTH DISTRICT OF SIKKIM by 1JOHN BHUTIA AND 2BISHNU K SHARMA”. LIFE SCIENCES LEAFLETS, vol. 123, May 2020, p. 12 TO 28, http://petsd.org/ojs/index.php/lifesciencesleaflets/article/view/1474.