An, Kyong-hwa
Han'guk Munhwasa, 2007
Buku Teks
Lee, Jeong Il
[publisher not identified], [date of publication not identified]
Buku Teks
Kim, Chin Ho, 1968-
Pagijong, 2006
Buku Teks
Sin, Chu-chol
Komyunikeisyon Buksu , 2006
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Jo, Su-jin
Sotong, 2010
Buku Teks