Kettler, Ryan J.  <br/><br/>
Research methodologies of school psychology  : critical skills 
Ryan J. Kettler 
 - New York:  Routledge,  2019. 
 - viii, 248p. 
<br/><br/><br/>Eng 
<br/><br/><label>ISBN: </label>9781138851504 
<br/><br/><label>Subjects--Topical Terms: </label><br/>School psychology-Research-Methodology
<br/><br/><label>Dewey Class. No.: </label>371.713  / KER