Miller, Michael, author
Prenada Media Group, 2008
Buku Teks
Dimas Andika, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2012
UI - Tesis (Open)
Hussey, D. E.
Pergamon Press, 1973
Buku Teks
Hussey, D. E.
Pergamon Press , 1971
Buku Teks
Ferry Taufik Hidayat, author
2014
UI - Skripsi (Membership)