Heru Purnomo. “Effect of Preoperative Education on Anxiety and Stability of Vital Signs of Preoperative Patients in Siti Rahmah Padang Hospital”. Professional Evidence-based Research and Advances in Wellness and Treatment 3, no. 1 (January 26, 2026): 38–51. Accessed January 28, 2026. https://gpijournal.com/index.php/perawat/article/view/401.