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Wadsworth/Thomson Learning, 2003
Buku Teks
Kim, Kyong-Dong, author
Jimoondanng International, 2003
Buku Teks
Oberdofer, Don, author
Korea Basic Books, 2001
Buku Teks
San, He Cheol.
Imaejin, 2007
Buku Teks
Kim, Kong Il, author
Foreign Languages Pub. House, 1992
Buku Teks