M. Dhofir, M. F. Aditama, R. Nur Hasanah, and H. Suyono, “The Analysis of Leakage Current on a 20-kV Silicone Rubber Post-Insulator under Dry and Wet Conditions”, Int. J. Adv. Sci. Eng. Inf. Technol., vol. 7, no. 4, pp. 1340–1346, Aug. 2017.