Nguyen, T.T. and Vu, M.D. 2022. Refining to Enhance Quality and Improve Specific Surface Area of Di Linh Bentonite for Adsorption Application. JST: Engineering And Technology For Sustainable Development. 32, 1 (Mar. 2022), 22–29. DOI:https://doi.org/10.51316/jst.156.etsd.2022.32.1.4.