| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Solutions Math B4 (Infant) | 978-89-269-0544-9 (89-269-0544-6) | 2009 |
| Solutions Math B5 (Infant) | 978-89-269-0545-6 (89-269-0545-4) | 2009 |
| Solutions Mathematics C1 (thinking skills) | 978-89-269-0620-0 (89-269-0620-5) | 2009 |
Cai Yanxin · Cho Yeonsoon · Cho Yongseung · Cho Youngsun · Choe Yongjun · Choi Youngsoon · Cui Yongqiang