Crowley, Tony
Macmillan, 1989
Buku Teks
Mcgilvray, James
Polity, 2014
Buku Teks
edited by Harriet Luria, Deborah M. Seymour, Trudy Smoke
LEA, 2006
Buku Teks
Fabb, Nigel
Cambridge University Press, 2009
eBooks
Bloomfield, Leonard
Dewan Bahasa dan Pustaka, 1992
Buku Teks