Rahman, M. M., .-. Kamrunnahar, S. Akter, A. S. Hossain, and F. M. U. Naz. “Outcome of Early Laparoscopic Cholecystectomy in Acute Calculus Cholecystitis”. Journal of National Institute of Neurosciences Bangladesh, vol. 5, no. 2, Sept. 2019, pp. 161-6, doi:10.3329/jninb.v5i2.43023.