Geisst, Charles R.
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Buku Teks
Prager, Jonas
Harper & Row, Publishers, 1982
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Linda Wimelda, author
2015
UI - Tesis (Membership)
Elvia Sumayastra, author
Fakultas Eknonomi dan Bisnis Universitas Indonesia, 2015
UI - Skripsi (Membership)
Bindseil, Ulrich, author
Oxford University Press, 2014
Buku Teks