Young, David W.
Aspen, 1984
Buku Teks
Levey, Samuel
J.B. Lippincott, 1973
Buku Teks
Levey, Samuel
J.B. Lippincott, 1984
Buku Teks
Cleverley, William O.
Aspen Publication, 1997
Buku Teks
Fallon, L. Fleming
Jones and Bartlett Publishers, 2014
Buku Teks