Marlena, B., Yuliasni, R., Sartamtomo, Budiarto, A., Arum, S., Moenir, M. and Syahroni, C. (2020) “Removal of Ammonia on Catfish Processing Wastewater using Horizontal Sub-Surface Flow Constructed Wetland (HSSFCW)”, Jurnal Riset Teknologi Pencegahan Pencemaran Industri, 9(1), pp. 15–21. doi: 10.21771/jrtppi.2018.v9.no1.p15-21.