Rani, Rekha, Ajay Singh, and Waseem Ahmad. 2019. “Synthesis of Agro Waste Nano Composites Using Coconut and Rice Husk for Adsorption of Chromium Ions”. International Journal of Health and Clinical Research 2 (11):1-4. https://ijhcr.com/index.php/ijhcr/article/view/70.