Givone, Donald D., author
McGraw-Hill, 1980
Buku Teks
Tocci, Ronald J., author
Prentice-Hall, 1982
Buku Teks
Sawin, Dwight H., author
Lexington Books, 1977
Buku Teks
Newell, Sydney B., author
Harper & Row, 1982
Buku Teks
Marsal, Garry, author
Butterworth, 1941
Buku Teks