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Amazon.com: Michael Porter's Value Chain: Unlock your company's competitive advantage (Management & Marketing Book 12) eBook : 50minutes, de Quatrebarbes, Amicie: Kindle Store
Cinq forces de Porter — Wikipédia
Harvard Guru Prof. Michael Porter backs Project Management. - IPM
Porter's Value Chain (After Michael Porter in Competitive Advantage). | Download Scientific Diagram
Michael E. Porter - Faculty & Research - Harvard Business School