Gough David, Oliver Sandy [and] James Thomas. <br/><br/>
An Introduction to Systematic Reviews/ 
David Gough, Sandy Oliver [and] James Thomas.      
 - Second edition. 
 - London :  Sage Publications,  2017.      
 - xvi. 331pages. :  illustrations   :26cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibligraphical references. 
<br/><br/><label>ISBN: </label>9781473929432 (paperback) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research--Evaluation --Research Methodology