Sayjumpa, J., Jomhataikool, B., Faungnawakij, K., Kuboon, S., Kraithong, W., Fuji, M. and Eiad-ua*, A. (2019) “Porous Carbon Adsorbent from Humin Derived from Thai Leonardite for Methylene Blue Dye Adsorption”, CURRENT APPLIED SCIENCE AND TECHNOLOGY. Bangkok, Thailand, 19(1), pp. 1–8. available at: https://li01.tci-thaijo.org/index.php/cast/article/view/123710 (accessed: 7 December 2025).