ANALISA PERBANDINGAN PEMAKAIAN BAHAN BAKAR SOLAR FUEL OIL (SFO) DAN LIQUEFIED NATURAL GAS (LNG) TERHADAP KINERJA BOILER DI UNIT COLD ROLLING MILL (CRM) DI PT X - Yusuf, Yusvardi; Teknik Mesin Universitas Sultan Ageng Tirtayasa (Faculty of Engineering, Universitas Sultan Ageng Tirtayasa, 2017)