Sharmiza Kamaruddin, Bakiss Hiyana Abu Bakar, and Rina Raha Abdul Hamid. 2022. “Star/Delta Three Phase System: Educational Trainer”. Politeknik & Kolej Komuniti Journal of Social Sciences and Humanities 7 (1):75-84. https://app.mypolycc.edu.my/journal/index.php/PMJSSH/article/view/224.