ANNAS, Muhammad Sabri; HARIPUDDIN, Haripuddin; ZAIN, Satria Gunawan. Microcontroller Implementation for Automatic Smart Bell. International Journal of Environment, Engineering and Education, [S. l.], v. 1, n. 1, p. 34–39, 2019. DOI: 10.55151/ijeedu.v1i1.11. Disponível em: https://ijeedu.com/index.php/ijeedu/article/view/11. Acesso em: 19 jan. 2026.