Dhingra, Ishwar C. <br/><br/>
Arthik Pranaliyan Evam Siddhant  Arthik Pranaliyan Evam Siddhant, Delhi : Sultan Chand, 2001 

 - Delhi  Sultan Chand  2001 
<br/><br/><label>Dewey Class. No.: </label>330.954  / D538A