Brause, Rita S., author
RoutledgeFalmer , 2000
Buku Teks
Thomas, R. Murray (Robert Murray), 1921-, author
Corwin Press, 2008
Buku Teks
Thomas, R. Murray (Robert Murray), 1921-, author
Bergin & Garvey, 2000
Buku Teks
Garson, G. David, author
Marcel Dekker, 2002
Buku Referensi
Oshima, Alice, author
Pearson Longman, 2006
Buku Teks