Sumathipala, A.Siribaddana, S.De Silva, N.2016-01-142016-01-142003The Ceylon Medical Journal, 48(04)pp.136-139https://dl.nsf.gov.lk/handle/1/20928Research and DevelopmentQualitative research methodsData managementInterviewsFocus groupsConsensus methodsObservation methodsAction researchCase study evaluationsArticle