Salim NA, . susilowati. The Evaluation of Relationship Marketing of Skin Care Services at Pku Muhammadiyah Yogyakarta Hospital. J Keskom [Internet]. 2013 Nov. 1 [cited 2024 Apr. 18];2(3):122-7. Available from: https://jurnal.htp.ac.id/index.php/keskom/article/view/58