Study of the effectiveness of the existing performance appraisal system in order to increase the productivity of the employees in the office of the Cabinet of Ministers 
Abeyratne, S.H.A.N.D. 
 -  2006. 
 - viii.103p.: 
<br/><br/> Herath, H.M.P.B., & Medagama, S. 
<br/><br/><label>Gov. Doc. Class. No.: </label>MPM/T/007