Malina Resta Maria Panjaitan, et al. “The Quality Test for Postoperative Pain Management Using the American Pain Society Patient Outcome Questionnaire Revisied (APS-POQ-R) Version Indonesia at Mohammad Hoesin Hospital in Palembang (A Study of the Quality Level of Postoperative Pain Management”. Jurnal RSMH Palembang, vol. 1, no. 2, Dec. 2020, pp. 41-45, https://jurnal.rsmh.co.id/index.php/jrp/article/view/6.