First census of Islamic world in ——period.A. Abu Bakar’sB. Umar’s C. Usman’sD. Ali’s 0 0 votesArticle Rating Subscribe LoginNotify of new follow-up commentsnew replies to my comments Label {} [+] Name* Email* Website Label {} [+] Name* Email* Website 0 Comments Oldest Newest Most Voted Inline FeedbacksView all comments