Gautam, Shailendra Nath, et al. “Evaluation of Postoperative Analgesic Efficacy of Intraperitoneal Ketamine Plus Bupivacaine in Laparoscopic Surgery”. Nepal Medical College Journal, vol. 26, no. 4, Dec. 2024, pp. 319-25, doi:10.3126/nmcj.v26i4.74469.