Criteria for the selection and use of visuals in instruction a handbook
| Egile nagusia: | |
|---|---|
| Beste egile batzuk: | |
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
Englewood Cliffs, NJ
Educational Technology
c1971.
|
| Gaiak: |