Cheeseman, G.W.H., author
John Wiley & Sons, 1979
Buku Teks
Barlin, G.B., author
John Wiley & Sons, 1982
Buku Teks
Isihara, A., author
Oxford University Press, 1991
Buku Teks
The Reader's Digest Association, 1953
Buku Teks
The Reader's Digest Association, 1953
Buku Teks