 | | Boiling Point No. 23 - December 1990
|
 |  | | Publication |
|
 | | Improving Cookstoves |
| | Publishing Educational Materials in Developing Countries |
| | Tinker, Tiller, Technical Change |
| | The Economics of Small-Appropriate Technology in a Changing World |
| | The Afrepren Network |
| | Scientific American |
|
