| |||
| direction nule; direction isotrope | |||
|
null direction : 2 phrases in 2 subjects |
| Communications | 1 |
| Natural resourses and wildlife conservation | 1 |
| |||
| direction nule; direction isotrope | |||
|
null direction : 2 phrases in 2 subjects |
| Communications | 1 |
| Natural resourses and wildlife conservation | 1 |