AZMI, A.; SHUKOR, M.A.A. Process Description for PLC Program Design. International Journal of Integrated Engineering, [S. l.], v. 1, n. 3, 2009. Disponível em: https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/95. Acesso em: 8 apr. 2026.