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L'agenda 21 (aussi appelé Action 21) est un plan d'action pour le XXIe siècle (comme l'indique son nom) qui a été adopté par 173 chefs d'états lors du. - ppt télécharger
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The phases of the Local Agenda 21 process (Source: Salmaso et al., 2002) | Download Scientific Diagram
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Agenda 21 – Is it good or bad? The conspiracies, the challenges and implementation with SDGs - Nepic
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