Integrated Korean: Beginning 1 [Text] : klear, textbook in korean, language / Young-mee Cho K. Shulz Ho-min Sohn Hyo Sang Lee . – Third edition .. – Honolulu : University of Hawai'i Press, 2019. - 231 p., ill.;– (KLEAR Textbooks in Korean Language. . . – [n. c.] – ISBN 978-0-8248-7619-7 : 0 tg.

Integrated Korean: Intermediate 1 [Text] : klear, textbook in korean, language / H-m. Sohn Y.-mee Cho C. Schulz H. S. Lee . – Third edition .. – Honolulu : University of Hawai'i Press, 2020. - 217 p., ill.;– (KLEAR Textbooks in Korean Language. . . – [n. c.] – ISBN 978-08248-8677-6 : 0 tg.

Integrated Korean: High Intermediate 2 [Text] : klear, textbook in korean, language / S. Chang H.-m. Sohn H.-J. Jeong S.-S. Yoon ... – Honolulu : University of Hawai'i Press, 2019. - 290 p.– (KLEAR Textbooks in Korean Language. . . – [n. c.] – ISBN 978-0-8248-8276-1 : 0 tg.