Tedy Juliandhy, T. Haryono, and Suharyanto. “Effects of Flue Gas Desulfurization Equipment Failure on Insulator Flashover Voltage”. Jurnal Nasional Teknik Elektro Dan Teknologi Informasi, Vol. 3, no. 2, 1, pp. 142-5, https://jurnal.ugm.ac.id/v3/JNTETI/article/view/3083.