Creswell, John W <br/><br/>
Educational research : planning, conducting, and evaluating quantitative and qualitative research 

 - 6th ed. 
 - UK,  Pearson education Limited,  2021. 
 - 709. 
<br/><br/><label>ISBN: </label>9781292337807 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Process research
<br/><br/><label>Dewey Class. No.: </label>370.72  / CRE/E