RUDIANTO, Rudianto; SETIAWAN, Eko Budi. Sistem Pengawasan Aktifitas Penggunaan Smartphone Android. Ultima InfoSys : Jurnal Ilmu Sistem Informasi, [S. l.], v. 9, n. 1, p. 24–31, 2018. DOI: 10.31937/si.v9i1.839. Disponível em: https://ejournals.umn.ac.id/index.php/SI/article/view/839. Acesso em: 1 aug. 2025.