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Presentation On Tertiary Sewage Treatment Plant. Drainage Department, Surat Municipal Corporation, 2018.
van Lier, Jules, and Merle de Kreuk. Water Management: Urban Sewage Treatment (Self paced). Delft University of Technology (TU Delft), 2017.
Bill de Blasio, and Vincent Sapienza. State of the Sewers 2016, Performance Metrics. Department of Environmental Protection, New York City, 2016.