Demographic aspects of socio-economic development in some Arab and African countries 2026-02-15T11:49:08+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Huzayyin, Suliman Ahmad; Smith, T. E. (Thomas Edward), 1916 (Research monograph series (Cairo Demographic Centre), 1974)