1 résultat(s) pour 'observation'
Observation
ملاحظة (ar), Observación (es), Observation (fr), Наблюдение (ru)
Scientific methods
Empirical research, Research work
Science
> Scientific approach
ملاحظة (ar), Observación (es), Observation (fr), Наблюдение (ru)
http://vocabularies.unesco.org/thesaurus/concept9616