Devellis, R. S <br/><br/>
Scale development:  theory and applications/ 
Robert D. Devellis 
 - 4th 
 - Los Angeles  Osage  2019 
 - xvii,262p. :  ill. ; Pbk 
<br/><br/><label>ISBN: </label>978150341569 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Scalling --Social Sciences
<br/><br/><label>LC Class. No.: </label>HC61.27 .D4  / 2019