Hassan Shadily, 1920-, author
Antar Karya, 1992
Buku Referensi
London: Tiger Books International, 1994,
Buku Referensi
Miskotte, K.H.
Leiden Universitaire Pers Leiden 1951
Buku Teks
Artikel Jurnal
Clark, C.M.H. (Charles Manning Hope), 1915-1991, author
Melbourne University Press, 1982
Buku Teks