Ingram, Beverly
Cambridge University Press , 1988
Buku Teks
Graham, Gaelle, author
Hodder & Stoughton, 1991
Buku Teks
Comeau, Raymond F.
Rinehart, and Winston, 1986
Buku Teks
Comeau, Raymond F.
Holt, Rinehart, and Winston, 1986
Buku Teks
Jian, Gerard
Houghton Mifflin, 1990
Buku Teks