Woodward, Val
Burgess, 1981
Buku Teks
by L. C. Dunn [and others]
The Unesco Press, 1956
Buku Teks
Healey, Joseph F., 1945-
Pine Forge Press, 2007
Buku Teks
Healey, Joseph F., 1945-
Sage, 2012
Buku Teks
Montagu, Ashley, 1905-1999
A Mentor Book, 1960
Buku Teks