Renita, A., P. P. Chowdhury, P. Sultana, P. Phukan, and A. Hannan. “UTILIZATION OF WASTE EGGSHELLS FOR PRODUCTION OF RENEWABLE CATALYST FOR TRANSESTERIFICATION”. International Journal of Pharmacy and Pharmaceutical Sciences, vol. 8, no. 7, July 2016, pp. 143-6, https://innovareacademics.in/journals/index.php/ijpps/article/view/11355.