Yun, Ki-bong
North Korea as I knew it : an authentic record
Buk-han Research Institute , 1974
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North Korea: After collapse of socialist camp; a last-ditch struggle to safeguard its own form of socialism with personality cult as mainstay
edited by Ik-sang Lee
Naewoe Press, 1993
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Impressions of Korea
Foreign Languages Publishing House , 1960
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The politics of North Korea
edited by Jae Kyu Park & Jung Gun Kim
Institute for Far Eastern Studies, Kyungnam University, 1979
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Nasution, A.N.
Korea Baru: Negeri "Kuda Semberani"; laporan & kisah Bangkitnya satu bangsa
Yayasan Dwikarya, 1965
 Buku Teks SO