Supriyono H, Adi NDP, Yudha AA. Training to Improve the Knowledge and Skills of Junior High School Students in the Field of Electrical Installation . voc [Internet]. 2023 Aug. 19 [cited 2024 Jul. 3];3(2):7-16. Available from: https://journals2.ums.ac.id/index.php/voc/article/view/2536