edited by Christopher Morris
Academic Press, 1992
Buku Referensi
Porteous, Andrew, author
John Wiley & Sons, 1992
Buku Referensi
Dorian, A.F., author
Elsevier Scientific Publishing Company, 1981
Buku Referensi
Gunton, Tony, author
NCC Blackwell, 1993
Buku Teks
Artikel Jurnal