Arifin. (2006). Domestic wastewater treatment using down-up flow septic tanks combined with submerged sand filter.
Chicago Style (17th ed.) CitationArifin. Domestic Wastewater Treatment Using Down-up Flow Septic Tanks Combined with Submerged Sand Filter. 2006.
MLA (8th ed.) CitationArifin. Domestic Wastewater Treatment Using Down-up Flow Septic Tanks Combined with Submerged Sand Filter. 2006.
Warning: These citations may not always be 100% accurate.