- Author: Young-Mee Choi Hyo Sang Lee Carol Schulz Ho-Min Sohn Sung-Ock Sohn
- Language: English
- Year: 2001
- Author: Cho Sungdai Lee Hyo Sang Wang Hye-Sook.
- Language: Korean-English
- Author: Young-Mee Cho Hyo Sang Lee Carol Schulz Ho-Min Sohn Sung-Ock Sohn
- Language: English
- Year: 2009
- Author: Young-mee Cho Hyo Sang Lee Carol Schulz Ho-min Sohn Sung-Ock Sohn
- Language: English
- Year: 2010