Enger, Eldon D.
McGraw-Hill, 2003
Buku Referensi
Long, Larry E.
Prentice-Hall, 1992
Buku Referensi
Eldon D. Enger, Andrew H. Gibson, J. Richard Kormelink, Frederick C. Ross, Rodney J. Smith
W.C Brown, 1976
Buku Teks
Stephenson, William K.
John Wiley & Sons, 1980
Buku Teks SO
Lightstone, A. H.
Harper & Row, 1965
Buku Teks SO