QAYS ABDUL KAREEM, Ayad. DESIGN AND IMPLEMENTATION OF A HIGHER LEVEL ELECTRONIC SECURITY LOCK. Journal of Engineering and Sustainable Development, Baghdad, Iraq, v. 20, n. 5, p. 88–102, 2016. Disponível em: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/723.. Acesso em: 13 jun. 2026.