"Arabic – Ethnologue". Ethnologue. Simons, Gary F. and Charles D. Fennig (eds.). 2018. Ethnologue: Languages of the World, 21st edition. Archived from the original on 5 January 2016. Retrieved 21 February 2018.
"Arabic – Ethnologue". Ethnologue. Simons, Gary F. and Charles D. Fennig (eds.). 2018. Ethnologue: Languages of the World, 21st edition. Archived from the original on 5 January 2016. Retrieved 21 February 2018.