Saha, P., R. R. Roy, M. Rahman, E. H. Khan, S. M. Reza, M. G. Rabbani, and K. S. Alom. “Clipless Laparoscopic Cholecystectomy: An Initial Experience of 50 Cases in Bangladesh”. Journal of Science Foundation, vol. 13, no. 1, May 2016, pp. 11-14, doi:10.3329/jsf.v13i1.27828.