Electrical Research Association Ltd
Pergamon Press, 1979
Buku Referensi
Tokheim, Roger L., author
McGraw-Hill, 1990
Buku Teks
Carr, Joseph J., author
Reston Publishing, 1982
Buku Teks
Tokheim, Roger L., author
McGraw-Hill, 1983
Buku Teks
McGlynn, Daniel R., author
John Wiley & Sons, 1976
Buku Teks