Brooks, Elizabert C
Jones & Bartlett Learning, 2013
Buku Teks
Guido, Ginny Wacker
Prentice-Hall, 2006
Buku Teks
Andry Indrady, examiner
F.A. Davis , 2004
Buku Teks
Scott, Ronald W
Jones & Bartlett Learning, 2013
Buku Teks
DeWitt, Anthony L.
Jones & Bartlett Learning, 2010
Buku Teks