“Interference Analysis of Postpaid KWh Meters According to Standard Operational Procedures at PT. PLN Ulp Helvetia Medan Indonesia: Analisis Gangguan Pada KWh Meter Pasca Bayar Menurut Standar Operasional Prosedur Di PT. PLN Ulp Helvetia Medan Indonesia”. Prevenire: Journal of Multidisciplinary Science, vol. 2, no. 1, Feb. 2023, pp. 49-56, https://doi.org/10.58330/prevenire.v2i1.93.