Lamberton, Damien
Chapman & Hall/CRC , 2008
Buku Teks
Castaneda, Liliana Blanco
Wiley , 2012
Buku Teks
Lial, Margaret L.
Pearson - Addison Wesley, 2008
Buku Teks
Varberg, Dale E.
Prentice-Hall, 1991
Buku Teks
Harshbarger, Ronald J.
Heath, 1990
Buku Teks