The Decision Book Βιβλία Concepts and models of interesting and relevant theories. https://www.thalia.at/shop/home/artikeldetails/A1044030576?ProvID=11010473&gclid=EAIaIQobChMI18m46vrG9gIVDPlRCh0YtQeIEAQYBCABEgKFjPD_BwE
