Study of the effectiveness of performance appraisal system used by the public sector organisations in employee development 
Senaviratne, A.W. 
 -  2009. 
 - x,78p.: 
<br/><br/> Gunasinghe, K.A.D., & Wijekoon, W.M.M.G.D. 
<br/><br/><label>Gov. Doc. Class. No.: </label>MPM/T/70