AZIZI, N. A. A. .; ZAINAL, N. The Development of ISafe Mobile Application Using Messaging and GPS System. Applied Information Technology And Computer Science, [S. l.], v. 2, n. 2, p. 1406–1418, 2021. Disponível em: https://publisher.uthm.edu.my/periodicals/index.php/aitcs/article/view/2250. Acesso em: 25 jun. 2022.