James E. Walters, David A. Michelson and Thomas A. Carlson, (eds.), "Isaac, catholicos — ܐܝܣܚܩ " in last modified August 17, 2016, http://syriaca.org/person/549
    
        
            
                
                    
                        Isḥaq
                    
                    
                        Isaac, the Catholicos
                  of Ctesiphon
                    
                    
                        اسحق
                        جاثليق المدائن
                    
                    
                        ܐܝܣܚܩ
                        ܩܬܘܠܝܩܐ ܕܡܕܝ̈ܢܬܐ
                    
                    
                        ܐܝܣܚܳܩ
                        ܩܰܬܘܠܝܺܩܳܐ ܕܰܡܕܝ̈ܢܳܬܐ
                    
                    
                        ܐܝܣܚܩ
                    
                    
                        ܐܝܼܣܚܵܩ
                    
                    
                        Isaac
                        , catholicos
                    
                    Katholikos Jsḥaq
                    
                        Katholikos
                        Jsḥaq
                    
                    http://syriaca.org/person/549
                    http://viaf.org/viaf/sourceID/SRP|person_549
                    
                        Bp. of Seleucia-Ctesiphon, and Cath.
                    
                    
                        the Catholicos of Ctesiphon
                    
                    
                        Ch. of E.
                    
                    
                        
                            
                                L.
                                Van Rompay
                            
                        
                        Isḥaq
                        The Gorgias Encyclopedic Dictionary of the Syriac Heritage
                        
                        212
                    
                    
                        The Scattered Pearls: A History of Syriac Literature and Sciences
                        
                        130
                    
                    
                        كتاب اللؤلؤ المنثور في تاريخ العلوم والأداب السريانية
                        
                        116
                    
                    
                        ܒܪ̈ܘܠܐ ܒܕܝܪ̈ܐ ܕܥܠ ܡܪܕܘܬ ܝܘܠܦܢ̈ܐ ܣܘܪ̈ܝܝܐ ܗܕܝܪ̈ܐ
                        
                        137-138
                    
                    
                        ܟܬ̣ܵܒ̣ܵܐ ܕܡܸܬ̣ܩܪܸܐ ܡܪܓܢܝܬ̣ܐ ܕܥܲܠ ܫܪܵܪܵܐ ܕܲܟ̣ܪܸܣܛܝܵܢܘܼܬ̣ܵܐ
                        
                        82
                    
                    
                        Bibliotheca Orientalis Clementino-Vaticana
                        
                        III:279
                    
                    
                        Baumstark, Geschichte der syrischen Literatur mit Ausschluß der christlich-palästinensischen Texte
                        
                        54