PEMBUATAN SISTEM INFORMASI MONITORING PRESENSI BERBASIS SMS GATEWAY: STUDI KASUS MTS N 1 BANTUL. JOISM [Internet]. 2022 Jul. 24 [cited 2026 Mar. 15];4(1):42-8. Available from: https://devjurnal.amikom.ac.id/index.php/joism/article/view/765