Columbia subject headings:
Iraq--Church history--Sources.
Madrasat Naṣībīn--History--Sources.
Harvard subject headings:
Barḥadbešabba, active 6th century
Iraq--Church history--Sources.
Iraq--Church history.
Learning and scholarship--Turkey--Nusaybin (Mardin İli)--History--Sources.
Madrasat Naṣībīn--History--Sources.
Manuscripts, Syriac--Translations into English.
Nusaybin (Mardin İli, Turkey)
Princeton subject headings:
Iraq--Church history--Sources.
Madrasat Naṣībīn--History--Sources.