Harshbarger, Ronald J., author
Heath, 1990
Buku Teks
Lial, Margaret L., author
Pearson - Addison Wesley, 2008
Buku Teks
Hoffmann, Laurence D., author
McGraw-Hill, 1979
Buku Teks
Varberg, Dale E., author
Prentice-Hall, 1991
Buku Teks
Kraus, John D. (John Daniel), author
WCB/McGraw-Hill, 1999
Buku Teks