Girard, Denis
Cassell , 1981
Buku Referensi
Surenne, Gabriel
Oliver and Boyd, [date of publication not identified]
Buku Referensi
Robert, Collin
Paris : Harper Collins Publisher, 2000
Buku Referensi
Clarendon Press, 1996
Buku Referensi
Dorian, A.F., author
Elsevier Scientific Publishing Company, 1981
Buku Referensi