Onyeoji, Chinedu P., et al. “Single Shot Spinal Analgesia for Labour: Bupivacaine- Pethidine VersusBupivacaine-Fentanyl for Multiparous Women”. Nigerian Journal of Anaesthesia, vol. 1, no. 1, Nov. 2024, pp. 7-14, https://doi.org/10.60787/nja.vol1no1.5.