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Buku Teks
Hussey, David E., author
Pergamon Press, 1976
Buku Teks
Clemens Chandra Edisanto, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2006
UI - Tesis (Membership)
Lasserre, Phillippe, author
Singapore Institute of Management, 1986
Buku Teks
Soriane, Emmanuel V., author
Sintag-Tala, 1987
Buku Teks