Roschat, Wuttichai, and Janeeya Khunchalee. 2020. “The Study of Physicochemical Properties of the Yang – Na (Dipterocarpus Alatus) Oil for Use As a High Potentiality Feedstock to Produce Liquid Biofuel in Thailand”. Journal of Materials Science and Applied Energy 9 (2):522-30. https://ph01.tci-thaijo.org/index.php/jmsae_ceae/article/view/235103.