Hewawasam, A.L.T.2017-06-232017-06-231994The Second National Symposium on Eppawala Phosphate Deposit: Recent Advances in Knowledge:p.12-13https://dl-ifs.nsf.gov.lk/handle/1/1780A comparative study of the P205 content and the solubility of the phosphate deposits at Ridigama and EppawalaArticle