Columbia subject headings:
Syriac Christians--Congresses.
Syrian Orthodox Church--History--Congresses.
Syrian churches--Congresses.
Harvard subject headings:
Islam--Relations--Christianity--Congresses
Syria--Antiquities--Congresses.
Syria--Church history--Congresses.
Syria--Social life and customs--Congresses.
Syriac Christians--Congresses.
Syrian Orthodox Church--History--Congresses.
Syrian churches--Congresses.
Princeton subject headings:
Syriac Christians--Congresses.
Syrian Orthodox Church--History--Congresses.
Syrian churches--Congresses.