Oakes, Michael P.
Edinburgh University Press, 1998
Buku Teks
Woods, Anthony
Cambridge University Press, 1986
Buku Teks
Baclawski, Kenneth
CRC Press, Taylor & Francis Group, 2008
Buku Teks
Deshmukh, Shailaja
[Springer, ], 2012
eBooks
Gazdar, Gerald
Addison-Wesley, 1989
Buku Teks