Zulkifli, Agustina Br Haloho, Legiran, and P. I.R.M, “The Comparison of Plasma Cortisol Levels between 0.125% Bupivacaine and 5 mg Continuous Oxycodone in Lower Extremity Orthopedic Surgery”, JACR, vol. 2, no. 2, pp. 222-242, Jan. 2022.