edited by Chong-Shik Chung and Gahb-Chol Kim
Research center for peace and unification, 1980
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Artikel Jurnal
Chinoy, Mike
St. Martin's Griffin, 2009
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hyun, Peter
Hanjin Pub. Co, 1981
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Kang, Chol-hwan, author
BasicBooks, 2005
Buku Teks