Drake 2006, p. 113. Drake, H. A. (2006). "The Impact of Constantine on Christianity". In Lenski, Noel (ed.). The Cambridge Companion to the Age of Constantine. Cambridge University Press. pp. 111–136. doi:10.1017/CCOL0521818389.006. ISBN9780521818384.
Drake 2006, p. 114. Drake, H. A. (2006). "The Impact of Constantine on Christianity". In Lenski, Noel (ed.). The Cambridge Companion to the Age of Constantine. Cambridge University Press. pp. 111–136. doi:10.1017/CCOL0521818389.006. ISBN9780521818384.
Drake 2006, pp. 121–123. Drake, H. A. (2006). "The Impact of Constantine on Christianity". In Lenski, Noel (ed.). The Cambridge Companion to the Age of Constantine. Cambridge University Press. pp. 111–136. doi:10.1017/CCOL0521818389.006. ISBN9780521818384.