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Ketola, Tarja 2008. From Psychopaths to Responsible Corporations – Waking up the Inner Beauty of Companies. Nova Science Publishers, New York: https://www.novapublishers.com/catalog/product_info.php?products_id=6607

Söderbaum, Peter 2008. Understanding Sustainability Economics. Towards Pluralism in Economics. Earthscan, London: http://www.earthscan.co.uk/?tabid=21127