Study on the effectiveness of fertilizer subsidy scheme on paddy production in Matale  district 
Abeysinghe, A.M.P. 
 -  2014. 
 - ix,90p.: 
<br/><br/> Sudasinghe, S.R.S.N., & Wijekoon, W.M.M.G.D. 
<br/><br/><label>Gov. Doc. Class. No.: </label>MPM/T/338