Khanam, J., Rahman, M. M. ., Fakhruzzaman, M. and Rumi, N. A. . (2018) “Determination of efficacy of different Newcastle disease vaccine used in broiler chickens”, Asian-Australasian Journal of Bioscience and Biotechnology, 3(1), pp. 52–58. doi: 10.3329/aajbb.v3i1.64753.