AMALIA, Dian Sari. Perancangan Sistem Arsip Surat Digital dengan Deteksi Duplikasi Berbasis Nomor Surat Menggunakan Regular Expression dan Exact Matching. RIGGS: Journal of Artificial Intelligence and Digital Business, [S. l.], v. 5, n. 2, p. 11298–11305, 2026. DOI: 10.31004/riggs.v5i2.10667. Disponível em: https://journal.ilmudata.co.id/index.php/RIGGS/article/view/10667. Acesso em: 12 nov. 2026.