Baharun H, Wibowo A, Mulyani H, Maula R. QUALITY SERVICE IN IMPROVING THE PROFITABILITY OF EDUCATIONAL INSTITUTIONS BASED ON PESANTREN. isema [Internet]. 2021 Dec. 31 [cited 2026 Jun. 3];6(2):171-86. Available from: https://journal.uinsgd.ac.id/index.php/isema/article/view/15580