- Demonology Past and PresentKurt E. Koch
- Occult ABCKurt E. Koch
- Occult bondage and deliveranceKurt E. Koch
- The devil's alphabetKurt E. Koch
- Occult bondage and deliveranceKurt Koch, Kurt E. Koch
- The strife of tonguesKurt E. Koch
- Day XKurt E. Koch
- GOD AMONG THE ZULUSKurt E. Koch
- Christian counseling and occultismKurt E. Koch
- Lure of the OccultKurt E. Koch
- The coming one; Israel in the last daysKurt E. Koch
- World without chance?Kurt E. Koch
- Occult Practices and BeliefsKurt E. Koch
- Between Christ and SatanKurt E. Koch
