Rosenberg, Robert
Holt Rinehart and Winston, 1970
Buku Teks
Stallcup, James G.
American Technical Publishers, 1987
Buku Teks
edited by Richard H. Engelmann and William H. Middendorf
Marcel Dekker, 1995
Buku Referensi
Albrecht, Robert L.
John Wiley, 1978
Buku Teks SO
Acarnley, Paul
The institution of electrical engineers, 2003
Buku Teks