DeVellis, Robert F. <br/><br/>
Scale development: theory and applications 

 - 4th ed. 
 - Los Angeles  SAGE  2017 
 - xvii,262p;  ill. 
<br/><br/><label>ISBN: </label>9781506341569 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Scaling(social science)
<br/><br/><label>LC Class. No.: </label>MED H61.27  / .D48