Kuaile Hanyu : Teacher's books. V. 2/ 
Xiaoqi, Li 
 - Beijing:  Peoples Education,  2002. 
 - 146 p. 
<br/><br/><label>ISBN: </label>9787107171321 
<br/><br/><label>Dewey Class. No.: </label>495.1  / XIA/K