Preliminary english test 4 with answers / 
Cambridge University 
 - 3rd edition 
 -  Cambridge University Press :  Fahasa,  2014 
 - 150 p. ;  21 cm 
<br/><br/><label>Subjects--Index Terms: </label>Luyện thi Tiếng Anh 
<br/><br/><label>Dewey Class. No.: </label>428  / P9151E