Nwana, O.C. <br/><br/>
Educational research and eavaluation/ 
O.C. Nwana 
 - Owerri  Boma Way Publishers  2007 
 - ix, 362p. ;  ills. :  20 cm 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>97825793003 
<br/><br/><label>Source: </label>B-33041 
<br/><br/><label>Subjects--Topical Terms: </label>