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Buku Teks
Eka Pratiwi, author
Program Pascasarjana Universitas Indonesia, 2012
UI - Tesis (Open)
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1994
UI - Skripsi (Membership)
Owler, L.W.J.
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Buku Teks
Martino, R.L., author
McGraw-Hill, 1968
Buku Teks