Bartolucci, Francesco. <br/><br/>
Statistical analysis of questionnaires :  a unified approach based on R and Stata / 
Francesco Bartolucci, Silvia Bacci, Michela Gnaldi. 
 - Boca Raton, FL :  CRC Press, Taylor & Francis Group,  2016. 
 - xxi, 305 p. ; 
<br/><br/><label>ISBN: </label>9781466568495 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences
<br/><br/><label>Dewey Class. No.: </label>001.422  / St