Palamanit, Arkom, Phonthip Khongphakdi, Patipan Sakulkit, and Thoranis Deethayat. 2020. “Quality of blended fuel prepared by mixing of diesel, bio-oil and emulsifier or ethanol using high speed and ultrasonic mixing”. KKU Science Journal 48 (3):418-31. https://ph01.tci-thaijo.org/index.php/KKUSciJ/article/view/250194.