The study on the Problems that affect the effectiveness of Public Sector Performance Appraisal System in Sri Lanka 
Ubayasiri, P. 
 -  2015. 
 - viii,76p.: 
<br/><br/> Sudasinghe, S.R.S.N. 
<br/><br/><label>Gov. Doc. Class. No.: </label>MPM/T/356