| Translated title of the contribution | A general theory is needed |
|---|---|
| Original language | Finnish |
| Pages (from-to) | 25-27 |
| Number of pages | 3 |
| Journal | Psykologia |
| Volume | 33 |
| Issue number | 1 |
| Publication status | Published - 1998 |
| MoE publication type | D1 Article in a trade journal |
Keywords
- activity
- theory