Thomas A. Carlson (ed.), "ʿŪmra Taḥtaya" in last modified December 9, 2016, http://syriaca.org/place/1806 ʿŪmra Taḥtaya ʿŪmrā Taḥtāyā Ūmra Taḥtaya ‘Ūmra Taḥtaya Ūmrā Taḥtāyā ‘Ūmrā Taḥtāyā http://syriaca.org/place/1806 David Wilmshurst The Ecclesiastical Organisation of the Church of the East, 1318-1913 288 Lower Ṭiyārī district Hakkārī region