우리 는 어디 까지 알까Chi-a Chŏng, Hye-jin Kim, Min-jŏng Pak, Sol-moe Pak, Sor-a Im, Ryu-jin Chang, Kyŏng-nan Cho · First published 2019Open the Tome
Han'gugŏ kyosa ka kkok araya hal Han'gugŏ parŭm kyoyuk ui iron kwa silcheChi-yŏng Sin, Hyang-sil Chang, Hye-jin Chang, Chi-yŏn Pak · First published 2015Open the Tome
Songs to learn KoreanSon-Mi Yi, Un-suk Han, Sung-Hui Chang, Hye-Jin Chong · First published 2012Open the Tome
