Amery, Colin
MIT Press, 1987
Buku Teks
McColvin, Eric
Longmans, Green and Co., 1946
Buku Teks
edited by Susan Gray; foreword, Paul Goldberger
McGraw-Hill, 2001
Buku Teks
Mather, Kennneth
Chapman & Hall and Science , 1972
Buku Teks
London : Chatto & Windus
Majalah, Jurnal, Buletin