Describir: Asystems approsch to sustainability and sustainable development

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 | [] ||   | ||__    | [] ||    _| ||_  | \\_\ ||   _| ||_    _| ||   
 |  __//   |_____||  |  __//   /_____//  \____//   /_____//  /__//    
 |_|`-`    `-----`   |_|`-`    `-----`    `---`    `-----`   `--`     
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