MAINTENANCE AND OPERATION STUDY ON DISTRIBUTION SUBSTATION AT PT. PLN (Persero) ULP GUNUNGSITOLI. Jurnal Fisika dan Studi Pengetahuan Alam [Internet]. 2026 Feb. 3 [cited 2026 Aug. 1];1(1):1-10. Available from: https://ejournal.lppnusantara.com/index.php/jfsp/article/view/418