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Oxford University Press , 1957
Buku Teks
Toynbee, Arnold J., author
Oxford University Press, 1948
Buku Teks
Cooper, R. W., author
Penguin Books, [c.1947]
Buku Teks
Hermin Leonny, author
1996
UI - Skripsi (Membership)
N. Ika M. Sukarno, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1988
UI - Skripsi (Membership)