Nakpong, Piyanuch, and Sasiwimol Wootthikanokkhan. 2026. “MIXTURES OF VEGETABLE OIL AND USED FRYING OIL AS FEEDSTOCK FOR BIODIESEL PRODUCTION IN THAILAND”. Suranaree Journal of Science and Technology 17 (2):193-202. https://ph04.tci-thaijo.org/index.php/SUJST/article/view/13604.