| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| In Search of Truth: Five Stress-Free Steps to Discover Who You Are, Where You're Going, and How to Get There | 978-O-9985836-2-4 (O-9985836-2-6) | 2019 |
J.K · Jakub Kazecki · Jakub Kosowski · Josip Kekez · Jozef Kocjasz · Józef Kossecki · Jozef Koszewski · Józef Kozak · Józef Kuczewski · József Kocsis