Saeed, I. K., Y. H. Ali, K. M. Taha, N. E. Mohammed, Y. M. Nouri, B. A. Mohammed, O. I. Mohammed, S. B. Elmagboul, and F. A. AlGhazali. “Para Influenza Virus 3 Infection in Cattle and Small Ruminants in Sudan”. Journal of Advanced Veterinary and Animal Research, vol. 3, no. 3, Nov. 2016, pp. 236-41, https://www.banglajol.info/index.php/JAVAR/article/view/30216.