Kusuma A, Fariyatul Fahyuni E. Innovation Of Customer Relationship Management For Islamic Boarding School Sustainability: Inovasi Customer Relationship Management Untuk Keberlanjutan Pondok Pesantren. ijins [Internet]. 2026 Aug. 10 [cited 2026 Sep. 26];27(3):10.21070/ijins.v27i3.2249. Available from: https://ijins.umsida.ac.id/index.php/ijins/article/view/2249