Tolong jelaskan mengenai Sumber dari Gregorius sang Pencerah

Agat’angeghos, History of the Armenians, SUNY Press, 1976

R. G. Hovannisian, ed. The Armenian People from Ancient to Modern Times, Volume I: The Dynastic Periods: From Antiquity to the Fourteenth Century, Palgrave Macmillan, 2004

V. M. Kurkjian, A History of Armenia, Indo-European Publishing, 2008

A. Terian, Patriotism and Piety in Armenian Christianity: The Early Panegyrics on Saint Gregory, St Vladimir's Seminary Press, 2005