SHREY MODI. AIRPORT LUGGAGE AUTOMATION USING PLC AND HMI. International Journal of Advance Research in Engineering, Science & Technology, [S. l.], v. 3, n. 11, p. 39–47, 2016. Disponível em: https://ijarest.org/index.php/ijarest/article/view/1019. Acesso em: 20 oct. 2025.