KHAIRUL ANUAR, MUHAMMAD HASRUL HAZIQ, and OMAR ABU HASSAN. “The Study on The Effectiveness and The Importance of Spark Test to The Earthing in The Single-Phase Housing System”. Progress in Engineering Application and Technology 2, no. 2 (December 2, 2021): 519–530. Accessed July 18, 2024. https://penerbit.uthm.edu.my/periodicals/index.php/peat/article/view/966.