Prototype of an automatic ballast system for cargo ships based on Outseal PLC. Journal of Industrial Automation and Electrical Engineering, [S. l.], v. 1, n. 2, p. 120–125, 2024. DOI: 10.24036/5mpw5x24. Disponível em: https://jiaee.ppj.unp.ac.id/index.php/jiaee/article/view/6. Acesso em: 20 jul. 2025.