Stephen R. Covey <br/><br/>
The 7 Habits of Highly Effective People/ 
by Stephen R. Covey 
 - 1st edition 
 - Phnom Penh,  My Bookshop,  2017 
 - 561 pages 
<br/><br/><label>ISBN: </label>9789924909651 
<br/><br/><label>ISSN: </label>9789924909651