SWARNKAR CP, SINGH D. Seasonal variation in efficacy of anthelmintics and prevalence of anthelmintic resistance in gastrointestinal nematodes of sheep in Rajasthan. Indian J of Anim Sci. 2012;82(5). Accessed October 27, 2025. https://epubs.icar.org.in/index.php/IJAnS/article/view/17671