Covid 19 : Impact, Mitigation, Opportunities and Building Resilience Volume 1 

 - Colombo :  National Science Foundation,  2021 
 - 790p.;  Col.ill.  25cm 
<br/><br/><label>ISBN: </label>9786245896004 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conference Proceeding