Setiawan, Dede, Febri Haswan, and Jasri Jasri. 2024. “Design of School Bell Scheduling Application Based on Arduino Uno on MTs Babussalam Simandolak”. JURNAL TEKNOLOGI DAN OPEN SOURCE 7 (1), 22 - 30. https://doi.org/10.36378/jtos.v7i1.3867.