Yingying Jiang, et al. “Use of Dewatered Sludge As Microbial Inoculum of a Subsurface Wastewater Infiltration System: Effect on Start-up and Pollutant Removal”. Water SA, vol. 43, no. 4 October, Oct. 2017, https://doi.org/10.4314/wsa.v43i4.07.