Central Statistical Organisation of Yemen. General Population Housing and Establishment Census 2012 Final Results [1]Arhivat în , la Wayback Machine., Statistic Yearbook 2005 of Yemen [2]Arhivat în , la Wayback Machine.
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Central Statistical Organisation of Yemen. General Population Housing and Establishment Census 2012 Final Results [1]Arhivat în , la Wayback Machine., Statistic Yearbook 2005 of Yemen [2]Arhivat în , la Wayback Machine.
