M. Akand, K. Choudhury, S. Kabir, S. Sarkar, and K. Amin, “Development of Washed Cell Fowl Cholera Vaccine in Bangladesh”, Int. J. Poult. Sci., vol. 3, no. 8, pp. 534–537, Jul. 2004, doi: 10.3923/ijps.2004.534.537.