Whitson, Gene, author
McGraw-Hill, 1996
Buku Referensi
edited by Gunter G. Seip
Siemens Aktiengesellschaft John Wiley & sons, 1987
Buku Referensi
Malmstadt, Howard V., author
W.A. Benjamin, 1973
Buku Teks
Hubert, Charles I. (Charles Irving), author
McGraw-Hill, 1969
Buku Teks
Smith, Ralph. J
John Wiley & Sons, 1992
Buku Teks