1. Layton B. (1976) ‘Coptic language’, in The Interpreter's Dictionary of the Bible, supplementary volume (Nashville)
2. Weitzmann K. (ed.) (1980) The Age of Spirituality: A Symposium. Princeton, NJ
3. Millar F. G. B. (1993) The Roman Near East, 31 B.C.–A.D. 337. Cambridge, MA
4. Williams F. E. (1985) ‘The Apocryphon of James’, in Attridge (ed.) (1985)
5. Canivet P. (1977) Le Monachisme Syrien selon Théodoret de Cyr. Paris