Fuad, A. and Sinambela, R. 2024. Studi Kasus Pengaruh Harmonisa Pada Pengoperasian Transformator. Teaching and Learning Journal of Mandalika (Teacher) e- ISSN 2721-9666. 5, 2 (Jul. 2024), 283-289. DOI:https://doi.org/10.36312/teacher.v5i2.3161.