Majalah penelitian gula vol. 44, no. 2, Juni 2008:use of environmentally safe clarifying agent (ECSA) as a clarifying agent for polarization of raw sugar, pengujian bioetanol sbg campuran bhn bakar pd mesin bensin mobile - PUSAT PENELITIAN PERKEBUNAN GULA INDONESIA (Pusat Penelitian Perkebunan Gula Indonesia, 2008)