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Macmillans Co , 1970
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Einzig, Paul
Macmillan, 1973
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Mikesell, Raymond F.
The Twentieth Century Fund , 1954
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Andi Aminah Putri Reno Minette Ma`mun, author
1986
UI - Skripsi (Membership)
Homaifar, Ghassem , author
John Wiley, 2004
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