1 resultados para 'surveys'
Surveys
Field work
Sample surveys, Survey analysis
Data collection, Population censuses, Questionnaires, Social surveys, Soil surveys, Surveying, Target groups
Science
> Scientific approach
Encuesta (es), Enquête (fr), Обзоры (ru), استقصاءات (ar), مُسوح (ar)
http://vocabularies.unesco.org/thesaurus/concept7393