An analysis on factors affecing job performance with special reference to the agriculture Research and production assistants in the department of agrarian development 
Perera, M.P. 
 -  2016. 
 - ix,48p.: 
<br/><br/> Sudasinghe, S.R.S.N. 
<br/><br/><label>Gov. Doc. Class. No.: </label>MPM/T/378