Lee, Yun-jin
Seoul Communication Books, 2006
Buku Teks
Kim, Yong-nan, author
Sot'ong Ch'ulp'ansa, 2011
Buku Teks
Language Plus, 1997
Buku Teks
Yonse dehakkyo Hankukohakdang
Yeonsedehakkyo Chulpanbu, 2006
Buku Teks
Sohn, Ho-min, author
University of Hawaii Press, 2004
Buku Teks