Barlaam et Ioasaph
(engl.: G. Woodward, H. Mattingly)
at The Online Medieval & Classical Library
[omacl.org/Barlaam/]

Fons cognitionis (pars III: De fide orthodoxa libri 4)
(engl.)
at NewAdvent
[www.newadvent.org/fathers/3304.htm]