Maitra, T., N. Alam, E. Haque, M. Khan, and H. Chowdhury. “Laparoscopic Cholecystectomy in Acute Gall Bladder Disease”. Journal of Bangladesh College of Physicians and Surgeons, vol. 24, no. 1, June 2007, pp. 10-13, doi:10.3329/jbcps.v24i1.140.