1. Kyoyuk pangsongnon : iron kwa silche / Yu Tʻae-yŏng, Kim Yŏng-su kongjŏ教育放送論 : 理論과實際 / 俞泰榮・金英洙共著 Author: Yu, Tʻae-yŏng, 1930- and 俞泰榮, 1930- Format: Book Language: Korean Published: 1988