12 books
Structural Principles of the Bible
Spiritual Life, or Helps and Hindrances
Discipler's Manual
Practical Truths from First Thessalonians
Why Did Christ Die?
Five Hundred Bible Study Outlines
Major Bible Truths
Living God's Way
Emblems of the Holy Spirit
Devotional Bible Studies
1000 Bible Study Outlines
Illustrated Bible Study Outlines