Kirk, Jerome Miller, Marc L <br/><br/>
Reliability and validity in qualitative research 

 - London  Sage  1986 
 - 87 
 - Qualitative research methods vol i .
<br/><br/><label>ISBN: </label>803924704 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Qualitative research<br/>Realiability<br/>Research methods<br/>Validity