A, N., Syahir Khairul. “ANALYSIS OF OUTPATIENT POLYCLINICS QUALITY SERVICE AND PATIENT RETURN VISITS: A CASE STUDY OF ROYAL PRIMA HOSPITAL MEDAN”. International Journal of Allied Research in Engineering and Technology (IJARET) 14, no. 2 (February 14, 2022): 1–11. Accessed June 18, 2025. https://zapjournals.com/Journals/index.php/IJARET/article/view/781.