Rudianto, Rudianto, and Eko Setiawan. “Sistem Pengawasan Aktifitas Penggunaan Smartphone Android”. Ultima InfoSys : Jurnal Ilmu Sistem Informasi 9, no. 1 (June 30, 2018): 24 - 31. Accessed November 23, 2024. https://ejournals.umn.ac.id/index.php/SI/article/view/839.