HENDRAWAN, ARI, Bagus Aprilio, and Ruth Wesley. “PERANCANGAN APLIKASI ABSENSI SMP TERANG BAGI BANGSA”. Electro Luceat 6, no. 2 (November 3, 2020): 274-281. Accessed March 2, 2021. http://jurnal.poltekstpaul.ac.id/index.php/jelekn/article/view/264.