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4,085,921 results
Maslow's Hierarchy, (or Pyramid), of Needs is one of the central ideas in modern economics and sociology. The work of a once ...
2,288,190 views
5 years ago
Dieses sozialpsychologische Modell ordnet die menschlichen Bedürfnisse und Motivationen in Klassen ein und stellt sie in einer ...
352,817 views
4 years ago