Singh, Shamsher <br/><br/>
Customer relationship management 
by Shamsher Singh 
 - 1st ed. 
 - Mumbai;  Himalaya publishing house Pvt.Ltd.  2018 
 - 442p. 
<br/><br/> include reference 
<br/><br/><label>ISBN: </label>9789352736850 
<br/><br/><label>Dewey Class. No.: </label>7295:8  / Q8