Artikel Jurnal
Dewhurst, J. Frederic, author
Twentieth Century Fund, 1955
Buku Teks
Dewhurst, J. Frederic, author
Twentieth Century Fund, 1955
Buku Teks
Cho, Hae-il, author
Dong-su-Munhak-sa, 1990
Buku Teks
New York: W.W.Norton & Company, 1988,
Buku Referensi