Omari, Issa Mcholo <br/><br/>
Educational research :  Concept and methods 
/ Issa Mcholo Omary 
 - 2 
 - Dar-Es salaam :  Delah education publishers ltd.,  2011. 
 - xxvi, 294 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographic reference  
<br/><br/><br/>eng. 
<br/><br/><label>ISBN: </label>9789987415298  TZS 20,000/= 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education research
<br/><br/><label>Dewey Class. No.: </label>370.7 OMA