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Murti, A.S., I.B.G. Manuaba, & I.G.D Arjana.
" OPTIMASI UNIT PLTU BERBAHAN BAKAR BATUBARA MENGGUNAKAN METODE LAGRANGE DI PT. INDONESIA POWER UP SURALAYA." <em>Jurnal SPEKTRUM</em> [Online], 7.1 (2020): 76-82. Web. 28 Aug. 2026