A., M. Rosyidi, M. Fauzi A, C.W. Yong, M. Khalis, M. Sazali S., and Saharul A. “Soil Enhancement Material Using Palm Oil Ashes (POA) for Grounding Purposes”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC) 8, no. 7 (October 1, 2016): 47–50. Accessed December 22, 2024. https://jtec.utem.edu.my/jtec/article/view/1277.