Guntur SG, Aulia Ichsan, Sari IP. Designing a Web-Based Mail Management System at the Beringin Helvetia Sub-district Office. Altafani [Internet]. 24 Maret 2024 [dikutip 14 November 2026];1(1). Tersedia pada: https://jurnal2.umsu.ac.id/index.php/altafani/article/view/48