Bachman, Lyle F., author
Cambridge University Press, 2004
Buku Teks
Gulland, J.A., author
John Wiley & Sons, 1983
Buku Teks
Halliday, M.A.K., author
Continuum, 2004
Buku Teks
Springer, 2012
eBooks
Mayer, Joseph Edward, author
John Wiley & Sons, 1977
Buku Teks