INFORMATION SYSTEM OF LETTER ARCHIVES AT THE OFFICE PADANG LAWAS DISTRICT GOVERNMENTBARUMUN BARU DISTRICT. Information Technology Studies Journal (ITECH), [S. l.], v. 1, n. 1, 2024. DOI: 10.62207/5gckre11. Disponível em: https://journal.ppipbr.com/index.php/itech/article/view/38.. Acesso em: 28 oct. 2025.