McGraw-Hill,1987,
Buku Referensi
A Halsted Press Book, 1979
Buku Referensi
edited by Robert B. Williams, Gordon L. Culp
Van Nostrand Reinhold, 1986
Buku Referensi
Larry W. Mays
McGraw-Hill, 2002.
Buku Teks
Larry W. Mays, editor in chief
McGraw-Hill, 1996
Buku Referensi