A study on job satisfaction among the development officers in the department of animal production and health in the Ratnapura district 
Dissanayaka,N.M.N.D. 
 -  2016. 
 - x,78p.: 
<br/><br/> Sudasinghe, S.R.S.N. 
<br/><br/><label>Gov. Doc. Class. No.: </label>MPM/T/397