Nguyen Hoang Luong Ngoc and Le Thanh Tu 2025. DEVELOPMENT OF RICE HUSK ASH ABSORBENT MODIFIED BY FERRIC (III) HYDROXIDE FOR METHYL ORANGE REMOVAL FROM AQUEOUS SOLUTION. HUIT Journal of Science. 25, 3 (Jun. 2025), 42–51. DOI:https://doi.org/10.62985/j.huit_ojs.vol25.no3.195.