Thomas, Robert Murray, 1921-
Corwin Press, 2008
Buku Teks
Thomas, Robert Murray, 1921-
Bergin & Garvey, 2000
Buku Teks
Garson, G. David
Marcel Dekker, 2002
Buku Referensi
Oshima, Alice
Pearson Longman, 2006
Buku Teks
Lester, James D. Sr., 1935-2006
Pearson, 2015
Buku Teks