F. BADR, Munaf. Employing Analogue and Digital Solenoid Hydraulic Valves in Position Control System. Journal of Engineering and Sustainable Development, Baghdad, Iraq, v. 16, n. 3, p. 269–286, 2012. Disponível em: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1283.. Acesso em: 19 apr. 2025.