Ginting R, Nuraini N, Nasution RS. ANALYSIS OF THE MARKETING MIX ON OUTPATIENT SATISFACTION AT RSU DELIA LANGKAT. Hearty [Internet]. 2026 Jun. 1 [cited 2026 Jun. 6];14(3):838-43. Available from: http://150.107.142.43/index.php/Hearty/article/view/23271