Steel, Robert George Douglas, 1917-, author
McGraw-Hill, 1980
Buku Teks
Noether, Gottfried E.
Hoghton Mifflin, 1976
Buku Teks
Montgomery, Douglas C., author
John Wiley & Sons, 2004
Buku Teks
Wetherill, G. Barrie
Chapman & Hall, 1972
Buku Teks
Erricker, B.C.
Hodder & Stoughton , 1981
Buku Teks