Goonatilake, L.A.Arambewela, L.S.R.De Costa, R.2010-07-062010-07-061984Journal of the National Science Council of Sri Lanka, 12(1):p.141-144https://dl.nsf.gov.lk/handle/1/6197QuinineAgricultureStudies on the alkaloid contents of the bark of Cinchona found in Sri LankaArticle