Northcote-Green, James
CRC Press, Taylor & Francis, 2007
Buku Teks
edited by Clark W. Bullard and Porter J. Womeldorff
Pergamon, 1984
Buku Teks
Nicholas D. Adams, Terry W. Brown, Rowland V. D. Firth, Laura P. Misenheimer, editor
McGraw-Hill, 1996
Buku Referensi
Olsson, Gustaf
Prentice-Hall, 1992
Buku Teks
Barwell, F.T.
Pergamon Press, 1983
Buku Teks