SIDIK, F. INPUT, PROCESS AND OUTPUT SYSTEM THEORY APPROACH IN EDUCATIONAL INSTITUTIONS. Irfani (e-Journal), [S. l.], v. 18, n. 1, p. 34–40, 2022. DOI: 10.30603/ir.v18i1.2658. Disponível em: https://journal.iaingorontalo.ac.id/index.php/ir/article/view/2658. Acesso em: 3 jul. 2024.