NDURU, R. S.; SUFYANA, C. M. Design of Web-Based Incoming and Outgoing Mail Information System at Diskominfo Kabupaten Tapanuli Tengah. Jurnal Info Sains : Informatika dan Sains, [S. l.], v. 13, n. 02, p. 129–136, 2023. Disponível em: https://ejournal.seaninstitute.or.id/index.php/InfoSains/article/view/2790. Acesso em: 1 may. 2026.