Levy, Paul S., author
John Wiley & Sons, 1999
Buku Teks
Manly, Bryan F.J., author
CRC Press, Taylor & Francis Group, 2009
Buku Teks
Zainodin Haji Jubok, author
Dewan Bahasa dan Pustaka Kementrian Pendidikan Malaysia, 1988
Buku Teks
Torgersen, Erik
Cambridge University Press, 1990
Buku Teks
Connor, L.R.
Sir Isaac Pitman & Sons, 19--
Buku Teks