Nazir, N., D. Mangunwidjaja, MA. Yarmo, and P. Malakul. 2013. “Life Cycle Assessment Studies of Jatropha (Jatropha curcas) Biodiesel Production Processed by In-situ Transesterification Method”. Applied Science and Engineering Progress 5 (2):13-20. https://ph02.tci-thaijo.org/index.php/ijast/article/view/67328.