Rachna Gupta, et al. “To Compare the Efficacy of Hyperbaric Levobupivacaine (0.5%) Versus Hyperbaric Bupivacaine (0.5%) in the Subarachnoid Block for Infraumbilical Surgeries”. Asian Journal of Medical Sciences, vol. 15, no. 12, Dec. 2024, pp. 45-50, https://www.nepjol.info/index.php/AJMS/article/view/71040.