HASIBUAN, A. A.; TRIAYUDI, A.; SARI, R. T. K. Designing Information System Of Social Media Alumni National University Based On Website: Designing Information System Of Social Media Alumni National University Based On Website. Jurnal Mantik, [S. l.], v. 4, n. 1, p. 701-708, 2020. Disponível em: https://iocscience.org/ejournal/index.php/mantik/article/view/796. Acesso em: 7 may. 2026.