420 <br/>
          Focus 2 : A2+/B1 Student's book 10th grade 
  
 - 2 ed 
.- Ulaanbaatar :, 2020., 
.- 159 pages ;,  30 sm. 
-ISBN 9781292390642 
<br/> - Special Edition for Mongolia 
<br/><br/><label>Тавиурын заалт: </label>420