C. P. SWARNKAR, D. SINGH, and S. KUMAR, “Prevalence of benzimidazole resistant ß- tubulin alleles inHaemonchus contortus larvae from sheep of Rajasthan”, Indian J of Anim Sci, vol. 82, no. 12, pp. 1477–1481, Dec. 2012, doi: 10.56093/ijans.v82i12.25658.