Third Council of Dvin (English Wikipedia)

Cone, Steven D.; Rea, Robert F. (2019-09-05). "Chapter 2: The Church from 500 to 1500". A Global Church History: The Great Tradition through Cultures, Continents and Centuries. Bloomsbury Publishing. ISBN 978-0-567-67305-3.
Augustine Casiday, The Orthodox Christian World (Routledge, 21 Aug 2012) page 47-48.
van Lint, Theo (2018). "councils of the Church, Armenia". In Nicholson, Oliver (ed.). The Oxford Dictionary of Late Antiquity, Volume 1: A–I. Oxford: Oxford University Press. p. 423. ISBN 978-0-19-881624-9.

cnewa.org

La Porta 2018, p. 137. La Porta, Sergio (2018). "Armenia". In Nicholson, Oliver (ed.). The Oxford Dictionary of Late Antiquity. Oxford: Oxford University Press. ISBN 978-0-19-866277-8.
van Lint 2018, p. 423. van Lint, Theo (2018). "councils of the Church, Armenia". In Nicholson, Oliver (ed.). The Oxford Dictionary of Late Antiquity. Oxford: Oxford University Press. ISBN 978-0-19-866277-8.