Macmillan, 1991
Buku Teks
Vice, Sue, author
Routledge, 2000
Buku Teks
A. Wahab Ali, author
Dewan Bahasa dan Pustaka Kementrian Pendidikan Malaysia, 1991
Buku Teks
Hilfer, Tony, author
Longman, 1992
Buku Teks
Nakamura, Mitsuo, author
Kokusai Bunka Shinkokai, 1969
Buku Teks