Bhattarai, A., P. Devkota, A. Shrestha, K. Gurung, K. K. Tamrakar, and H. C. Neupane. “Diagnosis and Management of Gallbladder Perforation: A Single-Center Experience”. Journal of Chitwan Medical College, vol. 11, no. 3, Sept. 2021, pp. 97-100, https://www.nepjol.info/index.php/JCMC/article/view/40142.