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Texas Gulf, 1961
Buku Teks
Thomas N. Ingram...[et al.]
Harcourt College Publishers, 2001
Buku Teks
edited by Anthony G. McGrew
Manchester University Press, 1985
Buku Teks
Havidh Nazif
2016
UI - Disertasi Membership
Marcus, Burton H.
Little, Brown, 1979
Buku Teks