Gupta Pramod Kumar <br/><br/>
Construction of a programmed text on 'electronic theory of valency' (Chemistry) for class 10th of Haldwani, distt, (Nainital) and finding out experimentally the effectiveness of high and low achievers in chemistry as compared to class room teaching 

 -  1976 
 - 92p. 
<br/><br/><br/>M. Ed. Dissertation (Delhi University) 
<br/><br/><label>Source: </label>Dissertations