Sulistyowati, S., Nurhadi, S., & Kharisma, D. D. (2022). Pengaruh optimalisasi maintenance terhadap on load tap changer transformator daya 50 MVA 150/20 kV . JURNAL ELTEK, 20(2), 103–110. https://doi.org/10.33795/eltek.v20i2.358