| |||
| instructional material; teaching material; instructional equipment | |||
| courseware | |||
| teaching aids; educational material; teaching equipment; educational aids; training aid; training materials; training aids | |||
| tutorial paper | |||
| tutorial; audio-visual material (das sich optischer u. akustischer Mittel bedient) | |||
|
Lehrmaterial : 5 phrases in 4 subjects |
| Finances | 1 |
| General | 2 |
| Information technology | 1 |
| Patents | 1 |