Renner, John W., author
Harper & Row, 1968
Buku Teks
Victor, Edward, author
Macmillan, 1966
Buku Teks
Jarolimek, John, author
Macmillan, 1968
Buku Teks
Webber, G. Cuthbert, author
Addison-Wesely, 1969
Buku Teks
Thomas, David A.
Allyn and Bacon, 1991
Buku Teks