JOHAL, M., and M. KAUR. “CHEMPHYLACTIC STUDIES WITH IVERMECTIN ON BOVINE NEMATODE INFECTION”. UTTAR PRADESH JOURNAL OF ZOOLOGY, vol. 15, no. 1, Jan. 1995, pp. 67-69, https://www.mbimph.com/index.php/UPJOZ/article/view/1297.