Halliday, Jon
Pantheon Books, 1975
Buku Teks SO
Adams, T.F.M.
Kodansha International, 1969
Buku Teks
Walter, John
Oxford University Press, 2017
eBooks
Bryant, Raymond L.
Routledge, 1997
Buku Teks
edited by Arthur S. Banks, Alan J. Day, Thomas C. Muller
CSA Publications, 1997
Buku Referensi