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Routledge and Kegan Paul, 1951
Buku Teks
Hemingway, Hilary
RuggedLand, [date of publication not identified]
Buku Teks
Ahmad Taufik, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2018
UI - Disertasi Membership
edited Archie Brown and Jack Gray
Holmes & Meier, 1979
Buku Teks
Beals, Alan R., author
Holt, Rinehart and Winston, 1967
Buku Teks