"Refworld – 2010 Report on International Religious Freedom – China (includes Tibet, Hong Kong, Macau)". Refworld. Retrieved 14 February 2015. ↑ Nationalencyklopedin "Världens 100 största språk 2007" (The World's 100 Largest Languages in 2007), SIL Ethnologue ↑ Brown, Rethinking tradition in modern Islamic thought, 1996: p.38-42 ↑ Öztürk, Yaşar Nuri (1999).