A study of the impact of extra duty in the state hospitals 
Subramaniam, G 
 -  2006. 
 - vi,78p.: 
<br/><br/> Ruwanchandra, K.D.S., & Wijekoon, W.M.M.G.D. 
<br/><br/><label>Gov. Doc. Class. No.: </label>MPM/T/39