Badau, S. J., Hassan, S. U., El-Yuguda, A.-D., & Igbokwe, I. O. (2015). Experimental intraocular infection of exotic cockerels with field strain of velogenic Newcastle disease virus in Nigeria. Journal of Advanced Veterinary and Animal Research, 2(4), 418–426. Retrieved from https://banglajol.info/index.php/JAVAR/article/view/26090