Hox, Joop J. <br/><br/>
Multilevel analysis :  Techniques and applications 

 - 3rd ed. 
 - New York :  Routledge,  2018. 
 - xv, 347p. 
 - Quantitative methodology .
<br/><br/><label>ISBN: </label>9781138121362 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operational Research