Thomas A. Carlson (ed.), "Mar Yaʿqob" in last modified December 9, 2016, http://syriaca.org/place/2113
    
        
            
                
                    Mar Yaʿqob
                    Mār Yaʿqōb (East Syrian)
                    Mar Yaqob
                    Mar Ya‘qob
                    Mār Yaqōb (East Syrian)
                    Mār Ya‘qōb (East Syrian)
                    
                    
                        Nisibis
                    
          
                    http://syriaca.org/place/2113
                    
                        David Wilmshurst
                        The Ecclesiastical Organisation of the Church of the East, 1318-1913
                        42, 43, 44, 45, 353, 354