Jackson, Barbara Burn, author
Richard D. Irwin Inc, 1979
Buku Teks
Yearsley, R.B., author
Gower Press, 1974
Buku Referensi
Siswanto, author
Elex Media Komputindo, 1990
Buku Teks
Erikson, Warren J.
Addison-Wesley , 1986
Buku Teks
edited by John A. Shtogren
Teleometrics Int., 1980
Buku Teks