Todd, D. J., author
Chapman and Hall, 1985
Buku Referensi
Brindley, Keith, author
A Butterworth-Heinemann Book, 1994
Buku Teks
Kaufman, Milton
McGraw-Hill, 1988
Buku Referensi
Hughes, Fredrick W., author
Prentice-Hall, 1983
Buku Referensi
Hughes, Fredrick W., author
Prentice-Hall, 1983
Buku Referensi