Corea, E.J.H.Gamage, I.R.Wickramanayake, P.N.2016-10-202016-10-20199824th Water, Engineering and Development Centre Conference:Sanitation and Water for All, Islamabad, Pakistan, 1998:p.133-135https://dl.nsf.gov.lk/handle/1/23428Engineering and TechnologyAnaerobic filtersSewage treatmentLow cost technologyAnaerobic filters for on-site sewage treatment in water and sanitation for allArticleRG/95/E/001FR 1216T