School bus boarding, deboarding, and location notification system based on GPS and the internet of things. International Journal of Engineering Research and Science & Technology, [S. l.], v. 21, n. 2, p. 180–186, 2025. DOI: 10.62643/. Disponível em: https://ijerst.org/index.php/ijerst/article/view/699. Acesso em: 1 may. 2026.