Waluyo, W., Sinisuka, N. I., Suwarno, S., & Djauhari, M. A. (2009). Leakage Current and Pollutant Properties of Porcelain Insulators from the Geothermal Area. ECTI Transactions on Electrical Engineering, Electronics, and Communications, 8(1), 126–145. https://doi.org/10.37936/ecti-eec.201081.172053