Monks, Joseph G., author
McGraw-Hill, 1987
Buku Teks
edited by W. Arthur Cullman and Harry R. Knudson
Prentice-Hall, 1972
Buku Teks
Brundage, Dorothy J., author
Mosby, 1980
Buku Teks
Straus, George, author
Prentice-Hall, 1967
Buku Teks
Beyers, Marjorie, author
Litle Brown , 1979
Buku Teks