Whiffen, Marcus
MIT Press, 1992
Buku Teks
Rotovision , 2010
Buku Referensi
Williams, Robin, author
Peachpit Press, 2000
Buku Teks
Williams, Robin, author
Peachpit Press, 2000
Buku Teks
Aurora Cuito, Alejandro Bahamón, Wendy Griswold
HBI, 2001
Buku Teks