(1)Bui Thuong, H.; Le Phuong, T.; Nguyen Thu, P. .; Le Ngoc, D.; Vo Dieu, L.; Pham Le, A.; Nguyen Lam, L.; Nguyen Thi, H.; Le Vinh, T.; Mai, H. Removal of Methylene Blue from Aqueous Solution by Biochar Derived from Rice Husk. <i>Vietnam J. Earth Sci.</i> <b>2022</b>, <i>44</i>, 273-285.