Brinker, Russell C
Erlangga, 1986
Buku Teks
Kissam, Philip, author
McGraw-Hill, 1981
Buku Teks
McEntyre, John G.
John Wiley & Sons, 1978
Buku Teks
McCormac, Jack C., author
Prentice-Hall, 1995
Buku Teks
Kissam, Philip, author
McGraw-Hill, 1978
Buku Teks