Barnes, Rob, author
Routledge, 1996
Buku Teks
Burns, Tom, author
Sage Publications, 2003
Buku Teks
Dian Masniari, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2013
UI - Skripsi Membership
Mauch, James E., author
Marcel Dekker, 1998
Buku Referensi
Madsen, David, 1929-, author
Jossey-Bass, 1992
Buku Teks