Jones, Emrys
Oxford University Press, 1970
Buku Teks SO
Tikhomirav, M.
Foreign Languages Publishing House, 1959
Buku Teks
by Christopher Alexander ... [and others]
Oxford University Press, 1977
Buku Teks SO
Alexander, Christopher
Oxford University Press, 1977
Buku Referensi
Parfect, Michael
Routledge, 1997
Buku Teks SO