Books¶
Each book can be read here chapter by chapter or downloaded as PDF.
| book | for whom | |
|---|---|---|
| Checked? An introduction to ZTL | curious readers from about 12, and anyone who wants ZTL without formulas | read · PDF |
Each book can be read here chapter by chapter or downloaded as PDF.
| book | for whom | |
|---|---|---|
| Checked? An introduction to ZTL | curious readers from about 12, and anyone who wants ZTL without formulas | read · PDF |