D. Ahmad, N., S. N.M. Zubir, S. S. Ramli, N. H. Ishak, W. S. Saidon, and NA. Salim6. “A Study of Palm Oil As an Insulating Medium”. International Journal of Engineering & Technology 7, no. 4.22 (November 30, 2018): 17–20. Accessed May 6, 2024. https://www.sciencepubco.com/index.php/ijet/article/view/22182.