Miller, Michael, author
Prenada Media Group, 2008
Buku Teks
Miller, Michael, author
Prenada Media, 2005
Buku Teks
Costa, Carol, author
prenada Media, 2007
Buku Teks
Costa, Carol, author
Prenada Media , 2004
Buku Teks
Niti Sastro, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1998
UI - Tesis Membership