Roth, Alexander
Noth-Holland, 1990
Buku Teks
edited by Karl Hurrle, F.M. Jablonski and Herbert Roth
Pergamon Press, 1972
Buku Referensi
O`Hanlon, John F.
John Wiley & Sons, 1980
Buku Teks
Dede Sujadi
Universitas Indonesia, 1989
UI - Tesis Membership
Mohamad Hartono
1992
UI - Skripsi Membership