Tashakkori, Abbas <br/><br/>
Mixed methodology: combining qualitative and quantitative approaches 

 - 1st 
 - Thousand Oaks  Sage  1998 
 - xi,185 p. 
<br/><br/><label>ISBN: </label>0-7619-0071-3 
<br/><br/><label>Subjects--Index Terms: </label>Social sciences - Research - Methodology