Stephenson, G.
Singpore: Longman, 1973
Buku Teks
edited by Herbert Herman
Academic Press, 1983
Buku Teks
Academic Press, 1956
Buku Teks
Dorn, William S., author
John Wiley & Sons, 1972
Buku Teks
Hostetter, Gene H., 1939-, author
Prentice-Hall, 1991
Buku Teks