Sri Lanka time use Survey final report - 2017 

 - Battaramulla  Department of census and statistics  2017 
 - xxi, 118 p. 
<br/><br/><label>ISBN: </label>9789557020976 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hours
<br/><br/><label>Dewey Class. No.: </label>331.257  / DEP