Jayatilleke, S.K.Gunawardana, S.S.V.2016-01-142016-01-142009The Ceylon Medical Journal, 54(2)pp.44-45https://dl.nsf.gov.lk/handle/1/21231Health SciencesWellsGroundwaterWater qualityMicrobiological contaminationEscherichia coliKalutara districtMicrobiological quality of well water in Kalutara districtArticle