Imam M, Abdullah. Service Quality dalam Membangun Competitive Advantage di Pondok Pesantren Nurul Jadid. NJIS [Internet]. 2022Sep.20 [cited 2025Jun.5];3(2):167-86. Available from: https://ejournal.kopertais4.or.id/tapalkuda/index.php/NJIS/article/view/4929