BENISHEIKH, U. A. and Zulkurnain Abdul-Malek (2024) “Leakage Current Harmonic Index as A Diagnostic Technique for Tool to Assess the Surface Condition Assessment of Aged Insulator Surface Under Varying Humidity”, ELEKTRIKA- Journal of Electrical Engineering, 23(1), pp. 141–147. doi: 10.11113/elektrika.v23n1.529.