Ikhsan Mubarok. KINSHIP SYSTEM AS WORD-OF-MOUTH MARKETING: A CASE STUDY OF ALUMNI NETWORKS AND STUDENT GUARDIANS IN ENHANCING THE REPUTATION OF ISLAMIC BOARDING SCHOOLS. Proceedings ICEM [Internet]. 2025 Dec. 17 [cited 2026 Jun. 27];3(2):104-17. Available from: https://ejournal.uimsya.ac.id/index.php/picem/article/view/4699