Jolly, F. A., M. Z. Abedin, and Z. Muyen. “Wastewater Treatment Using Coconut Fibre Ash As an Adsorbent for Removal of Heavy Metals”. Archives of Agriculture and Environmental Science, vol. 7, no. 2, June 2022, pp. 192-8, doi:10.26832/24566632.2022.070207.