Samuel N. C. Lieu, Manichaeism in the Later Roman Empire and Medieval China (1992), p.154
Augustine of Hippo, Confessions
Philip Schaff. St. Augustin: The Writings Against the Manicheans and Against the Donatists. Series: "A select library of Nicene and post-Nicene Fathers of the Christian Church" (vol. 4). Grand Rapids (MI): Eerdmans, 1956.