Paranjpe, A., A. K. Sharma, R. K. Ranjan, and V. Paranjape. “MSW A Potential Energy Resources: A Two Stage Anaerobic Digestion”. Asian Journal of Science and Applied Technology, vol. 2, no. 1, Apr. 2021, pp. 1-7, doi:10.51983/ajsat-2013.2.1.756.