Subha Devanathan (2024) “Comparison of nalbuphine and morphine as intrathecal adjuvant to 0.5% bupivacaine for post-operative analgesia in lower abdominal surgeries – A randomized and control study”, Asian Journal of Medical Sciences, 15(4), pp. 18–24. Available at: https://nepjol.info/index.php/AJMS/article/view/61661 (Accessed: 6 December 2025).