Cambridge University Press, 2015
eBooks
Amstrong, Michael, author
Crest Publishing House, 1999
Buku Referensi
edited by Anita L. Vangelisti, Daniel Perlman
Cambridge University Press, 2006
Buku Referensi
edited by Ron Sun
Cambridge University Press, 2008
Buku Referensi
edited by Maria Aloni and Paul Dekker
Cambridge University Press, 2016
Buku Teks