Tiasa Pohan, and Risandi Mulia. “Marketing Mix Relationship With Patients’ Re-Visit Interest of Out Patient in Internal Polyclinic at Gunungtua Hospital”. International Journal of Public Health Excellence (IJPHE) 3, no. 1 (August 21, 2023): 128–133. Accessed November 25, 2024. https://ejournal.ipinternasional.com/index.php/ijphe/article/view/534.