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The 20% method to achieve all your goals : solve problems in time and project management, work efficient and resilient, learn mindfulness emotional intelligence and anti-stress-strategies /

By Janson, Simone. . 1 electronic resource. 9783965963191

By Janson, Simone. . 1 electronic resource. 9783965963412

By Janson, Simone. . 1 electronic resource. 9783965964495