| Wat is scientology? | L. Ron Hubbard | New Era Publications International Aps |
| SCIENTOLOGY | Hubbard L.R. | New Era Publications International Aps |
| Scientology | New Era Publications International Aps | |
| DIANETICS NED ED | Hubbard | New Era Publications International Aps |
| Inleiding tot de ethiek van scientology | New Era Publications International Aps | |
| ZELFANALYSE | Hubbard L.R. | New Era Publications International Aps |
