Sean Covey <br/><br/>
The 7 Habits of Highly Effective Teens/ 
by Sean Covey 
 - 1st edition 
 - Phnom Penh,  វណ្ណា ស្រីកា,  Oct-2016 
 - 476 pages 
<br/><br/><label>ISBN: </label>9789924909613 
<br/><br/><label>ISSN: </label>9789924909613