TONG, Tiam Yong; ZAINAL, Nurfarina. IoT-Based Portable and Tracking Device for Children Safety. Evolution in Electrical and Electronic Engineering, [S. l.], v. 4, n. 2, p. 46–55, 2023. Disponível em: https://periodical.uthm.edu.my/index.php/eeee/article/view/10820. Acesso em: 15 aug. 2026.