Al Noman, Z., I. Hasan, M. Arif, J. Ferdous, S. Sachi, M. R. Alam, and M. H. Sikder. “Retrospective Study of Surgical Cases of Ruminants at Veterinary Teaching Hospital, Bangladesh Agricultural University”. Journal of Advanced Veterinary and Animal Research, vol. 5, no. 1, Apr. 2018, pp. 81-87, https://banglajol.info/index.php/JAVAR/article/view/36140.