“Testing of The Insulation Resistance and Turns Test Ratio (TTR) of The Distribution Transformers at PT. XYZ: Pengujian Tahanan Isolasi dan Tes Rasio Tegangan (TTR) Trafo Distribusi di PT. XYZ” (2024) Procedia of Engineering and Life Science, 5, pp. 339–344. doi:10.21070/pels.v7i0.1478.