Sri Lanka: Department of Census and Statistics <br/><br/>
Survey of construction industries: final report 2013 

 - Colombo  Ministry of National Policies and Economic Affairs  2015 
 - viii, 21 p. 
<br/><br/><label>ISBN: </label>_ 
<br/><br/><label>Dewey Class. No.: </label>315.493  / SRI