Pontoan, Michelle Cantika, Jay Idoan SIhotang, and Erienika Lompoliu. “Information Security Analysis of Online Education Management System Using Information Technology Infrastructure Library Version 3”. MATRIK : Jurnal Manajemen, Teknik Informatika dan Rekayasa Komputer 22, no. 2 (March 31, 2023): 207–216. Accessed November 7, 2025. https://journal.universitasbumigora.ac.id/matrik/article/view/2474.