Verma, Gajendra K. <br/><br/>
What is educational research? :  perspective on techniques of research / 
Gajendra K. Verma, Ruth M. Beard 
 - Aldershot, Hants :  Gower,  1981 
 - 209 p. :  ill. ;  23 cm. 
<br/><br/> Includes index 
<br/><br/>p. 192-202 
<br/><br/><label>ISBN: </label>0566003236 0566004291 pbk 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational research