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Buku Referensi
Language Plus, 2010
Buku Referensi
Kim, Jong-rok, author
Park Lee Jeong, 2005
Buku Teks
Komyunikeisyon Buksu, 2006
Buku Teks
Im, Kyong-sun, 1965-, author
Hanguk Oegugo Taehakkyo Chanbu, 2009
Buku Teks