2010-07-062010-07-061990Journal of the National Science Council of Sri Lanka, 18(2):p.119-126https://dl.nsf.gov.lk/handle/1/6152InsecticidesPlant extractionChemical propertiesCroton aromaticsChemistryCyperenoic acid and (-)-hardwickiic acid from the chloroform extract of the roots of Croton aromatics:isolation and insecticidal propertiesArticle