Beck, C.H., author
Munchen Verlag C.H. Beck 2002
Buku Referensi
B.M. Ichwan, author
Jakarta Erlangga 1987
Buku Teks
B.M. Ichwan, author
Jakarta Erlangga 1987
Buku Teks
Aetius, Br., compiler
Jakarta: Erlangga, 1992,
Buku Referensi
Teheran Center for Cultural-International Studies 2004
Buku Teks