A study on job satisfaction among extension officers in the Department of Animal Production and Health in Ratnapura district 
Jatathilaka, M.I.G. 
 -  2014. 
 - iv,66p.: 
<br/><br/> Medagama, S., & Sudasinghe, S.R.S.N. 
<br/><br/><label>Gov. Doc. Class. No.: </label>MPM/T/331