Amarasinghe, H.Udeni, A.Gunawardena, H.D.Jayatunga, Y.N.A.2010-07-062010-07-061993Journal of the National Science Council of Sri Lanka, 21(2):p.259-266https://dl.nsf.gov.lk/handle/1/5968BiochemistryCorrelation between biochemical oxygen demand (BOD) and chemical oxygen demand (COD) for different industrial waste watersArticle