Disher, Wayne, author
Libraries Unlimited, 2007
Buku Teks
Merlino, Joseph, author
Hungry Minds, 2002
Buku Teks
Shepard, Steven, author
McGraw Hil , 2014
Buku Teks
Mortier, Shamms, author
Elex Media Komputindo, 2002
Buku Teks
Strickland, Carol, author
Andrews McMeel, 2001
Buku Teks