Khokon, M. S. I., M. Azizunnesa, M. M. Islam, K. B. Chowdhury, M. L. Rahman, and M. Z. Ali. “Effect of Mastitis on Post-Partum Conception of Cross Bred Dairy Cows in Chittagong District of Bangladesh”. Journal of Advanced Veterinary and Animal Research, vol. 4, no. 2, July 2017, pp. 155-60, https://banglajol.info/index.php/JAVAR/article/view/33110.