SUGGESTIONS FOR THE DIDACHE
The Didache: Text, Translation, Analysis, and Commentary by Aaron Milavec
The Teaching of the Twelve: Believing & Practicing the Primitive Christianity of the Ancient Didache Community by Tony Jones
The Way of the Didache: The First Christian Handbook by William C. Varner
The Didache: The Epistle of Barnabas, The Epistles and the Martyrdom of St. Polycarp, The Fragments of Papias, The Epistle to Diognetus (Ancient Christian Writers) by James A. Kleis
The History of the Church (The Didache Series) by Peter Fr. Armenio
The Didache: Faith, Hope, & Life of the Earliest Christian Communities, 50-70 C.E. by Aaron Milavec
The Didache: A Commentary (Hermeneia: a Critical and Historical Commentary on the Bible) by Kurt Niederwimmer and Harold W. Attridge
The Apostolic Fathers, Volume I: I Clement. II Clement. Ignatius. Polycarp. Didache (Loeb Classical Library) by Bart D. Ehrman