Agronin, Marc E., author
Williams & Wilkins, 2008
Buku Teks
Barnet, Sylvan, author
Little, Brown, 1980
Buku Teks
Johson, Jean
Bedford Books, 1987
Buku Teks
Texas Instrument Incorporated
Texas Instruments, 1986
Buku Referensi
Gipson, James H.
McGraw-Hill Book, 1984
Buku Teks