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Buku Teks
Kim, Mikyoung, 1963-, author
Praeger, 2012
Buku Teks
Yun, Ki-bong, author
Buk-han Research Institute , 1974
Buku Teks
Srivastava, Mahavir Prasad, 1941-, author
Prentice Hall of India Private , 1982
Buku Teks
edited by Ik-sang Lee
Naewoe Press, 1993
Buku Teks