Buttle, Francis, author
Bayumedia Publishing, 2007
Buku Teks
Naufalia, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2015
UI - Skripsi (Membership)
Schmitt, Bernd., author
Wiley, 2003
Buku Teks
Barnes, James G., author
Andi, 2003
Buku Teks
Dicky Ghozali, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2013
UI - Tesis (Membership)