TY  - BOOK
AU  - SEONG-OCK Cheon and others
TI  - Topik 2: Take up the chellenge for perfect score
SN  - 9791186610343
U1  - P495, Q65 
PY  - 2016///
CY  - Seoul
PB  - Hawoo Publishing Inc. Korea   
N1  - Accompnying CD-1
ER  -