Study of effectiveness of Forestry diploma program of SLFI for performance of RFOS in Forest Department 
Silva, de N.S. 
 -  2008. 
 - ix,91p.: 
<br/><br/> Wijekoon, W.M.M.G.D., & Jayasundara, W.A. 
<br/><br/><label>Gov. Doc. Class. No.: </label>MPM/T/67