J. P. A. Oliveira, J. C. Leite, L. H. C. Valda, and R. D. Almeida, “Petri net Modelling of the Automatic Test System for Mobile Phone Battery”, ijaers, vol. 6, no. 7, Oct. 2019, Accessed: Jul. 22, 2024. [Online]. Available: https://journal-repository.com/index.php/ijaers/article/view/367