Badau, Samaila Jonathan, Shehu Usman Hassan, Abdul-Dahiru El-Yuguda, and Ikechukwu Onyebuchi Igbokwe. “Experimental Intraocular Infection of Exotic Cockerels With Field Strain of Velogenic Newcastle Disease Virus in Nigeria”. Journal of Advanced Veterinary and Animal Research 2, no. 4 (December 31, 2015): 418–426. Accessed April 26, 2024. https://www.banglajol.info/index.php/JAVAR/article/view/26090.