Artikel Jurnal
Herald Media, 2007
Buku Teks
edited by Hee-yeon Cho, Lawrence Surendra and Hyo-je Cho
New York, NY : Routledge, 2013
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edited by Yunshik Chang, Hyun-ho Seok and Donald Baker
Routledge, 2011
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So, Jung-sok, author
Yeoksabipyeongsa, 2008
Buku Teks