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Buku Teks
Cumes, J.W.C., author
Pergamon Press Australia, 1974
Buku Teks
Brookings Institution , 1977
Buku Teks
Yuventus Effendi, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2013
UI - Tesis Membership
Nadya Fitri, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2015
UI - Skripsi Membership