Ugo Zanetti and Nathan P. Gibson (eds.), "Events in Arabia in the 6th Century A.D." in last modified January 4, 2016, http://syriaca.org/bibl/1021
    
        
            
                
                    
                        S.
                        Smith
                    
                    Events in Arabia in the 6th Century A.D.
                    http://syriaca.org/bibl/1021
                
                
                    Bulletin of the School of Oriental and African
                     Studies
                    
                        1954
                    
                    16
                    425-468