editor, Avraham Sela
Continuum, 2002
Buku Referensi
Harari, Maurice
Prentice-Hall, 1962
Buku Teks
Andersen, Roy R.
Pearson/Prentice Hall, 2007
Buku Teks
Andersen, Roy R.
Longman, 2012
Buku Teks SO
Halliday, Fred
Cambridge University Press, 2005
Buku Teks