Joshi, Sahira, and Mandira Adhikari Pradhananga. 2017. “Removal of Fluoride Ions by Adsorption onto Fe₂O<sub>3</Sub> /Areca Nut Activated Carbon Composite”. Journal of the Institute of Engineering 12 (1):175-83. https://doi.org/10.3126/jie.v12i1.16901.