1. Charles, R.H., The Apocrypha and Pseudepigrapha of the Old Testament , vol. II, Oxford Press 2. Charles, Robert Henry. (1908) The Testaments of the Twelve Patriarcs. London. Adam and Charles Black. 27. Gallandi, Bibliotheca Veterum Patrum, vol. i. p. 193 sqq., Venice, 1765 [Sinker] 3. Coxe, Cleveland A., D.D. Introduction to The Twelve Patriarchs, Excerpts and Epistles, The Clementia, Apocrypha, Decretals, Memoirs of Edessa and Syriac Documents, Remains of the First Age by Philip Schaff, Edinburgh: T&T Clark , Grand Rapids, Michigan [Public Domain].