edited by Irene Yeung
Government Information Office, 2002
Buku Referensi
Solichin Salam, author
Pusat Studi dan Penelitian Islam, 1990
Buku Referensi
New York Harper and Brothers 1958
Buku Referensi
Raine, Kathleen
Buku Teks
Man, Thomas
Berlin : Volk und Wissen , 1968
Buku Teks