Jelaskan Pemerintah al-Murabitun dari Al-Murabitun dalam bahasa melayu

Abu Bakr ibn Umar (1061–1087M)

General History of Africa, Africa from the Seventh to the Eleventh Century, Ed. M. Elfasi, Ch. 13 I.Hrbek and J.Devisse, The Almoravids (pp. 336–366), UNESCO, 1988