Thapa, S. B., K. Bajracharya, Y. R. Kher, S. S. Pant, S. Gurung, and R. Pudasaini. “Aerobic Bacteria Associated With Symptomatic Gallstone Disease and Their Antimicrobial Susceptibility in Western Nepal”. Journal of Lumbini Medical College, vol. 4, no. 2, Jan. 2017, pp. 50-54, https://www.nepjol.info/index.php/JLMC/article/view/16460.