Setyopratomo, Puguh, 		Purwanto, Edy, 		Hartanto, Rudy, AND 		Kristianto, J.
" Effect of Reaction Temperature and the CPO/Metanol Ratio on the Product Characteristics in the Biodiesel Production Using Diethyl Eter as Co-Solvent" <em>Jurnal ILMU DASAR</em> [Online], Volume 9 Number 1 (1 January 2008)