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FINANCIAL ANALYSIS OF GREEN PETROLEUM COKE AS A COAL BLEND IN STEEL INDUSTRY TO SUPPORT NATIONAL ENERGY SECURITY von Naimah, Khoirun, Sasongko, Nugroho Adi, Widayatno, Rudy Laksmono

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Analysis Bioavtur for Energy Security von Widayatno, Rudy Laksmono, W, Arwin Datumaya, Abidin, Zaenal

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Analysis of Water Utilization as a Source of Energy von Rudy Laksmono Widayatno, I Wayan Midhio, Yanif Dwi Kuntjoro

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