Prasai, Adim, and Abha Prasai. “Intraperitoneal Instillation of Ropivacaine for Postoperative Analgesia in Laparoscopic Cholecystectomy”. Journal of General Practice and Emergency Medicine of Nepal, vol. 7, no. 10, Dec. 2020, pp. 1-6, https://nepjol.info/index.php/jgpemn/article/view/89459.