- Author: Young-Mee Cho Hyo Sang Lee Carol Schulz Ho-Min Sohn Sung-Ock Sohn
- Language: English
- Year: 2009
- Author: Cho Young-mee, Lee Hyo Sang, Schulz Carol, Sohn Ho-min, Sohn Sung-ock
- Language: English
- Year: 2015
- Author: Young-Mee Choi Hyo Sang Lee Carol Schulz Ho-Min Sohn Sung-Ock Sohn
- Language: English
- Year: 2001
- 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