Tran Nguyen Phuong Lan*, Ly Kim Phung, Luong Huynh Vu Thanh, Nguyen Hong Nam, Tran Thi Bich Quyen, & Le Phan Hung. (2022). Removal of methylene blue using zeolite NaX with silica derived from rice husk ash. Version B of Vietnam Journal of Science and Technology, 64(6). https://doi.org/10.31276/VJST.64(6).14-18