Buku Teks
by R.I. Downing ... [and others]
Melbourne University Press , 1964
Buku Teks
Groenewegen, Peter Diderik
George Allen and Unwin, 1985
Buku Teks
Chommie, John C.
West Publishing, 1968
Buku Teks SO
Eastaway, Nigel
Sweet & Maxwell, 2008
Buku Teks SO