Estes, Richard; Tiliouine, Habib - In: Social Indicators Research 116 (2014) 1, pp. 67-114
Today, approximately one-fourth of the world’s population includes 1,620 million persons who are part of the expanding Islamic Ummah. Muslims are found in large numbers in all regions of the world but are concentrated in Africa, Asia, the Middle East and selected successor states to the former...