edited by Brian L. Keeley
Cambridge University Press, 2006
Buku Teks
Reau, Louis
Albin Michel , 1951
Buku Teks
Caro, Paul
McGraw-Hill, 1993
Buku Teks
Keddy, Paul A.
Chapman & Hall, 1989
Buku Teks
Benzaquin, Paul
Henry Holt and Company, 1959
Buku Teks