Ramli, R. and Pakpahan, G. 2024. Pengembangan Sistem Informasi Kehadiran Siswa Berbasis Sms Gateway Di SMP Negeri 6 Medan. Innovative: Journal Of Social Science Research. 4, 4 (Aug. 2024), 12406–12414. DOI:https://doi.org/10.31004/innovative.v4i4.14558.