New Yonsei Korean: Vocabulary and Grammar 1-2 [Text] : English Version ; Yonsei University Korean Language Institute .- Seoul : Yonsei University Press , 2018. – New Yonsei Korean.– [n. c.] . – ISBN 978-89-6850-229-3, ISBN 978-89-6850-227-9 - Text in Korean, English . - QR code for Audio MP3 . Vol. 1-2 .– 229 p., col. ill. . : 0 tg.

New Yonsei Korean Speaking and Writing 1 [Text] Jeon Na-young Koo In-seo So Ji-young Lee Si-hwa Park Kyeong-hee Kim Hye-in ; [aut.: Jeon Na-young [et all.]] ; Yonsei University Korean Language Institute .- Seoul : Yonsei University Press Center , 2018.– [n. c.] . – ISBN 978-89-6850-222-4, ISBN 978-89-6850-223-1 - Text in Korean, English . Vol. 1 .– 240 p., ill. . : 0 tg.

New Yonsei Korean: Vocabulary and Grammar 1-1 [Text] : English Version ; Yonsei University .- Seoul : Yonsei University Press , 2018. – New Yonsei Korean.– [n. c.] . – ISBN 978-89-6850-227-9, ISBN 978-89-6850-228-6 - Text in Korean, English . - QR code for Audio MP3 . Vol. 1-1 .– 240 p., col. ill. . : 60 tg.

New Yonsei Korean Speaking and Writing 2-1 [Text] , In-seo Koo , Kyeong-hee Park , Na-young Jeon , Ji-young So , Hye-in Kim , Si-hwa Lee ; [aut.: Jeon Na-young [et all.]] ; Yonsei University Korean Language Institute .- Seoul : Yonsei University Press , 2020. – New Yonsei Korean.– [n. c.] . – ISBN 978-89-6850-420-4, ISBN 978-89-6850-222-4 (세트) - Text in Korean, English . Vol. 2-1 .– 103 p., ill. . : 0 tg.

National Library of Korea [Text] / ; National Library of Korea... – Seoul : National Library of Korea, [20--?]. - 38 p., ill.; - Treasure repository of knowledge and information at your fingertips . . – [n. c.] : 20 tg.

National Library For Children and Young Adults [Text] / ... – Seoul : [s. l.], [20_?]. - 23 p., ill.; . . – [n. c.] : 10 tg.