Columbia subject headings:
Orthodox Eastern Church--Syria--Congresses.
Syrian Orthodox Church--Congresses.
Harvard subject headings:
Antioch (Orthodox patriarchate)--History--Congresses.
Orthodox Eastern Church--Syria--Congresses.
Orthodoxos Ekklēsia tēs Hellados--Congresses.
Princeton subject headings:
Orthodox Eastern Church--Syria--Congresses.
Syrian Orthodox Church--Congresses.