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Macmillan, 1967
Buku Teks
Yusuf Hadli, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2014
UI - Skripsi (Membership)
Feinstein, Anthony, author
John Hopkins University Press, 2003
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Wolseley, Roland E., author
Chilton, 1959
Buku Teks
Tyrrell, Robert, author
Focal Press, 1975
Buku Teks