Educational research:  planning, conducting, and evaluating quantitative and qualitative research/ 
John W. Creswell, Timothy C. Guetterman 
 - Sixth edition 
 - New Jersey:  Pearson Education,  2019. 
 - xxii, 655 pages:  illustrations,  25 cm. 
<br/><br/> Includes bibliographical references, glossary and index. 
<br/><br/><label>ISBN: </label>0134519361 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education -- Research -- Methodology
<br/><br/><label>LC Class. No.: </label>Circ LB 1028 .C74 2019