A study on the effectiveness of present performance appraisal system in the public sector in Sri Lanka with special reference to all Island services 
Jayawickrema,B.H.N. 
 -  2008. 
 - ix,85p.: 
<br/><br/> Herath, H.M.P.B., & Wijekoon, W.M.M.G.D. 
<br/><br/><label>Gov. Doc. Class. No.: </label>MPM/T/109