Pack, Alice C.
Newbury House Pub., 1980
Buku Teks
Dixson, Robert J., author
Regents Publishing, 1971
Buku Teks
English Language Services; editor, Charles J. Hirsch, James A. Curtin
Collier/Macmillan, 1971
Buku Teks
Pincas, Anita
Macmillan Press, 1983
Buku Teks
compiled and translated by Ismail Mazhar
The Renaissance Bookshop, 1950
Buku Referensi