NUGRAHENI, B. S. D.; WIJIASTUTI, A.; PAMUJI, P. Development of an Arduino- and Internet of Things (IoT)-Based Early Warning Bell System for Bullying Against Autistic Children. Journal of Mathematics Instruction, Social Research and Opinion, Bandung, Indonesia, v. 5, n. 1, p. 121 –, 2026. DOI: 10.58421/misro.v5i1.1025. Disponível em: http://journal-gehu.com/index.php/misro/article/view/1025. Acesso em: 20 jun. 2026.