MARANCI, Christina. The Architect Trdat: Building Practices and Cross Cultural Exchange in Byzantium and Armenia. The Journal of the Society of Architectural Historians (Oakland: University of California Press), 2003, roč. 62, čís. 3, s. 294. Dostupné online [cit. 2020-12-21]. ISSN0037-9808. (po anglicky)
virtualani.org
King Gagik's church of Saint Gregory [online]. VirtualAni, [cit. 2020-12-24]. Dostupné online. (po anglicky)
worldcat.org
MARANCI, Christina. The Architect Trdat: Building Practices and Cross Cultural Exchange in Byzantium and Armenia. The Journal of the Society of Architectural Historians (Oakland: University of California Press), 2003, roč. 62, čís. 3, s. 294. Dostupné online [cit. 2020-12-21]. ISSN0037-9808. (po anglicky)