Randolph, John F., author
Wadsworth, 1965
Buku Teks
Johnson, Richard E., author
Allyn and Bacon, 1968
Buku Teks
Edwards, C.H., author
Prentice-Hall, 1982
Buku Teks
Stein, Sherman K., author
McGraw-Hill, 1982
Buku Teks
Purcell, Edwin J. (Edwin Joseph), 1901-, author
Erlangga, 1999
Buku Teks