Blazek, Ron, author
Libraries Unlimited, 2000
Buku Referensi
Cambridge University Press, 2009
eBooks
Gardiner, Eileen, author
Cambridge University Press, 2015
Buku Teks
Gardiner, Eileen, author
Cambridge University Press, 2015
Buku Teks
edited by the London office of Hosein University
Hosei University , 1996
Buku Teks