Chauhan, S.S.. <br/><br/>
A Textbook of Programmed Instruction /  

 - 1st ed /  
 - New Delhi-16 :   Sterling Publishers Pvt. Ltd.. 
 - p.192 :  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Instructions
<br/><br/><label>Dewey Class. No.: </label>T:(B)  / M2