Zalizar, L. ., . W. . Pancapalaga, . D. . Indratmi, and Y. Jani. “Patterns in Anthelmintic Administration for Laying Hens in Blitar and Kediri District - Indonesia and the Opportunities of Drug Resistance: Anthelmintic Administration for Laying Hens and Drug Resistance”. Proceedings of the Pakistan Academy of Sciences: B. Life and Environmental Sciences, vol. 55, no. 4, Dec. 2018, pp. 65-69, http://ppaspk.org/index.php/PPAS-B/article/view/115.