Traister, John E.
Reston Publishing , 1979
Buku Teks
Baer, Chales J.
McGraw-Hill, 1980
Buku Teks SO
Bethune, James D.
Prentice-Hall, 1990
Buku Referensi
Carmody, Emmett J.
Oklahoma: CAD Press, c1989
Buku Teks
Raskhodoff, Nicholas M.
Prentice-Hall, 1982
Buku Teks