Bartholomen, Davis
Allyn and Bacon, 1966
Buku Teks
Patranabis, D.
Tata McGraw-Hill, 1983
Buku Teks
edited by Gunter G. Seip
Siemens Aktiengesellschaft John Wiley & sons, 1987
Buku Referensi
Whitson, Gene
McGraw-Hill, 1996
Buku Referensi
Ryder, John D. (John Douglas)
McGraw-Hill, 1957
Buku Teks