FARHI, lubna; ALI, zain A.; ZIA, S. Multiple Colors Making System Using PLC. Sir Syed University Research Journal of Engineering & Technology, Pakistan, v. 8, n. 2, 2019. DOI: 10.33317/ssurj.88. Disponível em: https://sirsyeduniversity.edu.pk/ssurj/rj/index.php/ssurj/article/view/88. Acesso em: 3 may. 2024.