Mochel, E.V.
Holt, Rinehart and Winston, Inc., 1959
Buku Teks
Luzadder, Warren J., author
Prentice-Hall, 1993
Buku Teks
Jensen, Cecil, author
McGraw-Hill, 1990
Buku Teks
Frederick E. Giesecke [and others]
Pearson education International, Prentice Hall, 2009
Buku Teks
Helsel, Jay D., author
Gregg Division, McGraw-Hill, 1979
Buku Teks