SISTEM INFORMASI MANAJEMEN SURAT (SIMSUR) PADA PT TIRTA INVESTAMA DC PULO KAMBING. sibernetika [Internet]. 2024 Jan. 27 [cited 2026 Feb. 4];8(2):39-4. Available from: https://jurnas.saintekmu.ac.id/index.php/sibernetika/article/view/66