Pohan T, Nasution W, Saputra J. The Effect of Implementing Marketing Mix Strategy on Increasing the Number of Outpatients at Gunung Tua Regional Hospital North Padang Lawas. JKPI [Internet]. 2025 Jan. 31 [cited 2025 Nov. 3];9(1):85-96. Available from: https://jurnal.unprimdn.ac.id/index.php/JKPI/article/view/6168