 |
| |||
| pilot survey; experimental sample survey; exploratory survey; pilot inquiry; pilot sample; sample survey; trial survey | |||
|
pilotundersogelse : 5 a las frases, 1 temas |
| Estadísticas | 5 |
|
| |||
| pilot survey; experimental sample survey; exploratory survey; pilot inquiry; pilot sample; sample survey; trial survey | |||
|
pilotundersogelse : 5 a las frases, 1 temas |
| Estadísticas | 5 |