Garsoïan published numerous books and journal and encyclopedia articles on Armenian, Byzantine, and
Sasanian history. •
Armenia between Byzantium and the Sasanians. Variorum Publishing. 1985. • ''The epic histories attributed to P'awstos Buzand: (Buzandaran Patmut'iwnk').'' 1989. • ''L'Église arménienne et le grand schisme d'Orient''.
Peeters Publishers. 1999. •
Church and Culture in Early Medieval Armenia.
Ashgate Publishing, 1999. •
De Vita Sua.
Mazda Publishers, 2011. (memoir) •
Studies on the Formation of Christian Armenia. 2010. •
Interregnum: Introduction to a Study on the Formation of Armenian Identity (ca 600-750). 2012. ; ;Articles • "Byzantine Heresy. A Reinterpretation."
Dumbarton Oaks Papers 25 (1971): 85–113. • "Secular jurisdiction over the Armenian church (fourth-seventh centuries)."
Harvard Ukrainian Studies 7 (1983): 220–250. • "Byzantium and the Sasanians."
Cambridge History of Iran 3.1 (1983): 568–592. • "The problem of Armenian integration into the Byzantine empire."
Studies on the internal diaspora of the Byzantine Empire (1998): 53–124. ;Translations •
The trade and cities of Armenia in relation to ancient world trade by
Hakob Manandian. 1965 •
Armenia in the Period of Justinian by
Nicholas Adontz.
Calouste Gulbenkian Foundation. 1970. •
The Arab Emirates in Bagratid Armenia by
Aram Ter-Ghevondyan.
Livraria Bertrand. 1976 •
The Epic Histories Attributed to Pʻawstos Buzand: (Buzandaran Patmutʻiwnkʻ).
Harvard University Press, 1989. ==References==