Wilde, Ethan, author
Peachpit Press, 2003
Buku Teks
Reding, Elizabeth Eisner, author
Delmar Cengage Learning, 2013
Buku Teks
Bove, Tony, 1955-, author
Random House, 1993
Buku Teks
M. Abdul Aziz, author
Ekuator , 2004
Buku Teks
Burrows, William E., author
MCGraw-Hill , 2003
Buku Teks