Sofyan. “PERANCANGAN PROTOTIPE BELL OTOMATIS PADA SEKOLAH DASAR INPRES 56 BREMI : Design Of An Automatic Bell Prototype At Inpres 56 Bremi Primary School”. Jurnal Sains Komputer dan Teknologi Informasi 6, no. 2 (May 17, 2024): 1–7. Accessed July 3, 2024. https://journal.umpr.ac.id/index.php/jsakti/article/view/6931.