Sayjumpa, J.; Jomhataikool, B.; Faungnawakij, K.; Kuboon, S.; Kraithong, W.; Fuji, M.; Eiad-ua*, A. Porous Carbon Adsorbent from Humin Derived from Thai Leonardite for Methylene Blue Dye Adsorption. Curr. Appl. Sci. Technol. 2019, 19, 1-8.