Arifin, Romi, Agung Sutrisno, and Charles Punuhsingon. “ANALISIS COST – BENEFIT INJEKSI NaOH PADA BASIN COOLING TOWER PLTP UNIT 5 DAN 6 DI AREA GEOTHERMAL LAHENDONG”. JURNAL POROS TEKNIK MESIN UNSRAT 8, no. 2 (July 8, 2021). Accessed May 10, 2024. https://ejournal.unsrat.ac.id/v3/index.php/poros/article/view/34703.