Bartholomen, Davis
Allyn and Bacon, 1966
Buku Teks
Patranabis, D.
Tata McGraw-Hill, 1983
Buku Teks
Malmstadt, Howard V., author
W.A. Benjamin, 1973
Buku Teks
Popov, Vladimir V., author
Mir Publishers, 1970
Buku Teks
edited by Gunter G. Seip
Siemens Aktiengesellschaft John Wiley & sons, 1987
Buku Referensi