Ruwah Joto, Sukamdi and Pratama Aditya 2023. Analisa Audit Upaya Efisiensi Energi di PT. Telkom Witel Unit Network Area dan IS Operation. Elposys: Jurnal Sistem Kelistrikan. 9, 3 (Feb. 2023), 155–160. DOI:https://doi.org/10.33795/elposys.v9i3.650.