J. M. Fiey, Jeanne-Nicole Mellon Saint-Laurent and David A. Michelson, (eds.), "The date of the "martyrs of Nagran"" in last modified August 3, 2016, http://syriaca.org/bibl/2224
    
        
            
                
                    
                        François
                        Blois
                    
                    The date of the "martyrs of Nagran"
                    http://syriaca.org/bibl/2224
                    778
                    http://zotero.org/groups/392292/items/BSVZ9J36
                    0905-7196
                
                
                    Arab Arch Epigraphy Arabian Archaeology and Epigraphy
                    
                        1990
                    
                    1
                    2-3
                    110-128