P. PAL, L. R. CHATLOD, H. RAHMAN, and S. BANDYOPADHYAY, “Epidemiology of gastrointestinal nematode infections in yaks in Sikkim, India”, Indian J of Anim Sci, vol. 83, no. 9, Sept. 2013, doi: 10.56093/ijans.v83i9.33026.