Porter, Andrew
London: MacMillan, 1994
Buku Teks
London: Oxford at the Clrendon Press, 1954
Buku Teks
Hanum Salsabiela Rais, author
PT Gramedia Pustaka Utama, 2014
Buku Teks
Ibn Khaldoun
Paris Librairie Klincksieck [t.th.
Buku Teks
Buck, Carl Darling, author
Chicago, Chicago University Press 1949
Buku Referensi