Gayen A K et. al <br/><br/>
Measurement of achievements in history, civics and economics : A statiscal study on the effectiveness of external examiniations 

 - New Delhi, India   National Council of Educational Research and Training 
 - xviii,170p. 
<br/><br/><br/>Report No. 5 of the research project on examinations Indian institute of technology, Kharagpur 
<br/><br/><label>Source: </label>Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational - Texts and Measurement