Arnold, Robert R., author
John Wiley & Sons, 1978
Buku Teks
Langenbach, Robert G., author
Prentice-Hall, 1968
Buku Teks
Thierauf, Robert J., author
John Wiley & Sons, 1980
Buku Teks
Lott, Richard W., author
Prentice-Hall, 1967
Buku Teks
Brandon, Dick H., author
Macmillan Information , 1975
Buku Teks