MD ZAIN, Badrul Aisham. Simulation and Control of Door Lock System Using PID Controller. Journal of Advanced Mechanical Engineering Applications, [S. l.], v. 2, n. 2, p. 31–52, 2021. Disponível em: https://journal.uthm.edu.my/index.php/jamea/article/view/9234. Acesso em: 13 aug. 2026.