| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Christian Science Platform Structures with Bible Lesson Topics | 978-1-6999-0909-6 (1-6999-0909-1) | 2019 |
| Science Barriers Dissolved: Illustrated Science | 978-1-0950-3217-6 (1-0950-3217-8) | 2019 |
Ralf Witthaus · Ralf Wittig · Ralf Wuttke · Ralph Wettach · Rolf A. F. Witzsche · Rolf Wittig