Kothari, C. R.,  <br/><br/>
Research methodology :  methods and techniques / 
C.R. Kothari, R.C. Gupta. 
 - Fourth Edition. 
 - xxi, 458 pages:  illustrations.  24 cm. 
<br/><br/>عطاءات Includes index. 
<br/><br/><label>ISBN: </label>9789386649225 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research--Methodology<br/>Scientific Research Methodology
<br/><br/><label>Subjects--Geographic Terms: </label>--Science
<br/><br/><label>LC Class. No.: </label>Q180.55.M4  / .K684 2019