W. Witakowski,
“Historiography, Syriac”, in
The Gorgias Encyclopedic Dictionary of the Syriac Heritage,
S. P. Brock, Butts, A. M., Kiraz, G. A., and Rompay, L. van, Eds. Piscataway : Gorgias Press, 2011, p. 202.
W. Witakowski,
“Toma of Marga”, in
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S. P. Brock, Butts, A. M., Kiraz, G. A., and Rompay, L. van, Eds. Piscataway: Gorgias Press, 2011, p. 417.