Siskind, Charles S.
McGraw-Hill, 1963
Buku Teks
Gingrich, Harold W.
Prentice-Hall, 1979
Buku Teks
Northcote-Green, James, author
CRC Press, Taylor & Francis, 2007
Buku Teks
The Institute of Electrical and Electronics Engineers, Inc., 1982
Buku Referensi
Drury, Bill, author
Institution of Engineering and Technology, 2001
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