Qualitative and quantitative research methods Simplified 
Samuel Mwituria wa Maina 
 - Nairobi  Frajopa Printers  2012 
 - xii,272p.  :ill. 
<br/><br/><label>ISBN: </label>996671888 
<br/><br/><label>LC Class. No.: </label>H62  / .Q36