Freeman, Roger L.
Reference manual for telecommunications engineering / Roger L. Freeman
John Wiley & Sons, 1991
 Buku Referensi
Lindeburg, Michael R.
Mechanical engineering reference manual
Professional Publications, 1984
 Buku Teks
Stephens, Wendell B.
Civil engineering technicians? ready-reference manual
McGraw-Hill, 1985
 Buku Referensi
Dunlop, J.
Telecommunications engineering/J.Dunlop and D.G.Smith
Chapman & Hall, c1994
 Buku Teks
Autocad user's manual and reference manual
Autodesk Inc., 1986
 Buku Referensi