S. V. Dewalkar, and S. S. Shastri. “An Innovative Approach for Wastewater Management Using Staged Onsite Wastewater Treatment System Positioned on Environmental Floors of Multi-Storey Building”. Challenging Issues on Environment and Earth Science Vol. 4, June 2021, pp. 19-31, doi:10.9734/bpi/ciees/v4/2221F.