Patel, Ila, et al. “COMPARATIVE STUDY OF BUPIVACAINE VS BUPIVACAINE AND KETAMINE (INTRATHECALLY) DURING INTRAOPERATIVE AND POST OPERATIVE ANALGESIA IN NON PIH CAESARIAN SECTION”. National Journal of Medical Research, vol. 1, no. 02, Dec. 2011, pp. 71-75, https://njmr.in/index.php/file/article/view/886.