Greenberg, Stanley, 1956-, author
The Johns Hopkins University Press, 1998
Buku Teks
Sandmaier, Marian
Tab Books, 1992
Buku Teks
Walker, Peter, author
MIT Press, 1998
Buku Teks
Scuzzo, Giuseppe, author
Quintessenz Verlag, 2003
Buku Teks
Toto Pranoto, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2006
Artikel Jurnal