Books about the Christian churches of the East that traditionally use languages other than Greek or Latin.
A History of Eastern Christianity. By Aziz S. Atiya. London: Methuen & Co., 1968.
An Introduction to the History of the Assyrian Church, or the Church of the Sassanid Persian Empire, 100–640
Patrologia Orientalis. A series of texts in Oriental languages, with French or English translations, published by Firmin-Didot.
Indian Christian Who is Who. By Dr. Mar Apren. Bombay Parish, Church of the East, 1983. —A reference to the various Indian churches, their numbers, etc.
A Nestorian Bibliography. By Mar Aprem. Trichur, Kerala: Mar Narsai Press, 1982.
A Commentary on the Mass (which has been attributed to, but it is not really) by the Nestorian George, Bishop of Mosul and Arbel (10th century). Translated from the Syriac by R. H. Connolly (1909). Edited by F. Robert Matheus. Vadavathoor, Kottayam, India: Pontifical Oriental Institute of Religious Studies, 2000.
A Study of the Council of Ephesus (431 A.D.) to Examine the Relevance of the Christology of the Church of the East. A thesis submitted to the Senate of Serampore College as partial fulfillment of the requirements of the Degree of Master of Theology. By George Davis Mooken [Mar Aprem]. Trichur, Kerala: Mar Narsai Press, 1978.
Nestorian Missions. By Mar Aprem. Trichur, Kerala: Mar Narsai Press, 1976.
Nestorian Theology. By Mar Aprem. Trichur, Kerala: Mar Narsai Press, 1980.
Anaphora. The Divine Liturgy of Saint James according to the rite of the Syrian Orthodox Church of Antioch. Translated from the original Syriac. Published by Metropolitan Mar Athanasius Yeshua Samuel, Archbishop of the Syrian Orthodox Church in the United States and Canada, 1967.
Beth Mardutho: eBethArké Digital Collection. A digital library of material on Syriac studies, especially Syriac Christianity. Many books published in India that would be very difficult to find elsewhere.