Le , Huu Binh, et al. “COMPARISON OF MATERNAL SATISFACTION BETWEEN BUPIVACAINE 0.0625% PATIENT CONTROLLED EPIDURAL ANALGESIA AND CONTINUOUS EPIDURAL INFUSION FOR LABOR PAIN”. Cantho Journal of Medicine and Pharmacy, no. 35, Jan. 2021, pp. 101-8, https://tapchi.ctump.edu.vn/index.php/ctump/article/view/934.