IRAWAN, Muhammad Dedi; MUARIF, Risdani. E-Letter Design Using Prototype System Development Methodology. Bigint Computing Journal, [S. l.], v. 2, n. 1, p. 45–58, 2024. DOI: 10.55537/bigint.v2i1.806. Disponível em: https://journal.aira.or.id/index.php/bigint/article/view/806. Acesso em: 5 sep. 2025.