Special Studies Christian Doctrine Vol. 1 & 2 by C.C. Crawford Christian Doctrine Vol. 3 & 4 by C.C. Crawford Eternal Spirit Vol. 1 by C.C. Crawford Eternal Spirit Vol. 2 by C.C. Crawford Learning from Jesus by Seth Wilson New Testament Evidences by Wallace W. Wartick New Testament History by Wallace Wartick and Wilbur Fields The Church in the Bible by Don Dewelt World and Literature of the Old Testament by John T. Willis You Can Understand The Bible by Grayson Harter Ensign