Achari, V. Sivanandan, A. S. Rajalakshmi, S. Jayasree, and Raichel Mary Lopez. 2019. “Surface Area and Porosity Development on Granular Activated Carbon by Zirconium: Adsorption Isotherm Studies”. Journal of Applied Research and Technology 16 (3). https://doi.org/10.22201/icat.16656423.2018.16.3.719.