Khangwichian, Warangkana, Sudarat Pattamasewe, Ratanaporn Leesing, Jesper T. N. Knijnenburg, and Yuvarat Ngernyen. 2022. “Adsorption of cationic dye on activated carbon from hydrolyzed Dipterocarpus alatus leaves: Waste from biodiesel production”. Engineering and Applied Science Research 49 (4):531-44. https://ph01.tci-thaijo.org/index.php/easr/article/view/245706.