LPG gas leak security system using Microcontroller based Android  application. Journal of Industrial Automation and Electrical Engineering, [S. l.], v. 1, n. 2, p. 132–137, 2024. DOI: 10.24036/vzpzkp89. Disponível em: https://jiaee.ppj.unp.ac.id/index.php/jiaee/article/view/95. Acesso em: 26 aug. 2025.