Davis, Gordon B., author
Barron's Educational Series, 1979
Buku Teks
Brause, Rita S., author
RoutledgeFalmer , 2000
Buku Teks
Dian Masniari, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2013
UI - Skripsi Membership
Garson, G. David, author
Marcel Dekker, 2002
Buku Referensi
Thomas, R. Murray (Robert Murray), 1921-, author
Corwin Press, 2008
Buku Teks