Peacock, H.L.
Heinemann Educational Books, 1980
Buku Teks
Tarling, Nicholas
Singapore University Press, 2005
Buku Teks
Drake, Charles D.
Sweet and Maxwell , 1972
Buku Teks
Wedgwood, C. V.
Time Reading Program, 1964
Buku Teks
Petrie, Charles, Sir
Erye & Spottiswoode, 1958
Buku Teks