Simarangkir, Manase. “Rancan Bangun Sistem Informasi Penjadwalan Mata Pelajaran Berbasis Web”. Electro Luceat 7, no. 1 (July 28, 2021): 48-59. Accessed May 4, 2024. https://jurnal.poltekstpaul.ac.id/index.php/jelekn/article/view/340.