Hussain, Syed Ashaq, et al. “Prevalence and Etiology of Omasal and Abomasal Impaction in Buffaloes and Cattle: A Necropsy Study”. Buffalo Bulletin, vol. 40, no. 2, June 2021, pp. 259-65, https://kuojs.lib.ku.ac.th/index.php/BufBu/article/view/3799.