Niswah, M. and Zulrahmadi 2023. Sistem Informasi Presensi Karyawan Berbasis Web dan SMS Gateway di SMK Dr. Indra Adnan Indragiri College . Jurnal Indragiri Penelitian Multidisiplin. 3, 3 (Jul. 2023), 35–42. DOI:https://doi.org/10.58707/jipm.v3i3.490.