Hussain, MM, and CA Kawser. “Bezoar, A Rare Cause of Gastrointestinal Obstruction”. Journal of Bangladesh College of Physicians and Surgeons 28, no. 3 (November 23, 2010): 199–201. Accessed May 8, 2024. https://banglajol.info/index.php/JBCPS/article/view/6517.