Thomas A. Carlson (ed.), "Mygdonius" in last modified June 30, 2014, http://syriaca.org/place/140
    
        
            
                
                    Mygdonius
                    Çağçağ
                    الهِرماس
                    A tributary of the Khabur river which flows past Nisibis.
                    
                        Attestation of name الهِرماس in the Muʿjam al-buldān of Yāqūt al-Ḥamawī.
                        
                    
          
                    http://syriaca.org/place/140
                    http://pleiades.stoa.org/places/874509
                    http://en.wikipedia.org/wiki/Jaghjagh_River
                    http://dbpedia.org/resource/Jaghjagh_River
                    
                        The Gorgias Encyclopedic Dictionary of the Syriac Heritage
                        
                        Map I C1, III
                    
                    
                        Muʿjam al-buldān
                        Yāqūt al-Ḥamawī
                        
                        V:459