N. Suhaila A Japar, M. Aizudin A. Aziz, M. Najib Razali, N. Waheeda Abdu Rahman, and . ., “Grease and its Application on Electrical Equipment: a Review”, IJET, vol. 7, no. 3.26, pp. 23–29, Aug. 2018, doi: 10.14419/ijet.v7i3.26.17455.