DICKENSON, Aarron; JOHNSON, Donald M. A Low-Cost Programmable Logic Control (PLC) Trainer for Use in a University Agricultural Electricity Course. Journal of Agricultural Systems, Technology, and Management, [S. l.], v. 21, n. 1, 2006. Disponível em: https://jastm.org/index.php/jastm/article/view/11785. Acesso em: 23 feb. 2025.