Hossain, M., M. Islam, M. Bari, M. Torab, and M. Mondal. “Seroprevalence of Newcastle Disease Virus in Backyard Chickens at Gazipur District of Bangladesh”. International Journal of Natural Sciences, vol. 3, no. 1, July 2016, pp. 22-25, doi:10.3329/ijns.v3i1.28583.