Jiffry, I.Nilantha, B.G.P.Kumara, Y.S.Subashi, G.H.M.J.2021-02-022021-02-022010Seminar Proceedings:p.1-7https://dl-iesl.nsf.gov.lk/handle/1/2763Use of rice husk ash (RHA) for manufacturing of masonry blocksConference Paper