Vince-Proe, Daphne
McGraw-Hill, 1975
Buku Teks
Richards, Ivor
West Sussex, 2000
Buku Teks
Molnar, Felicia Eisenberg
Rockport, 2001
Buku Teks
Orwell, George, 1903-1950
Sumbu, 2001
Buku Teks
by Cleveland P. Hickman, Jr. [and others]
McGraw-Hill, 2012
Buku Teks