Marwoto, Marwoto, and Sigit P. Raharjo. “Onset Response of Bupivacaine 0.5% Which Has Been Added With Sodium Bicarbonate on Epidural Block”. Medical Journal of Indonesia 14, no. 1 (February 1, 2005): 7-10. Accessed February 27, 2024. http://mji.ui.ac.id/journal/index.php/mji/article/view/167.