Siregar, Kiman. 2015. “Strategy to Reduce GHG Emission and Energy Consumption at Process Production of Biodiesel Using Catalyst From Crude Palm Oil (CPO) and Crude Jatropha Curcas Oil (CJCO) in Indonesia”. International Journal on Advanced Science, Engineering and Information Technology 5 (5):293-99. https://doi.org/10.18517/ijaseit.5.5.575.