Duggal, Janak, ed Goyal, J C, ed <br/><br/>
Research in classroom  reports of experiments and projects 

 - New Delhi  National council of educational research and training  1972 
 - v,3 ; v,130p.; 18cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education - classroom - research<br/>Improving learning<br/>Periatical examinations<br/>Teaching general science