Jonathan O'Brien

도서
Category Management in Purchasing Category Management in Purchasing
Category Management in Purchasing
2019년
Supplier Relationship Management Supplier Relationship Management
Supplier Relationship Management
2022년
The Buyer's Toolkit The Buyer's Toolkit
The Buyer's Toolkit
2017년
Category Management in Purchasing Category Management in Purchasing
Category Management in Purchasing
2024년
Negotiation for Procurement and Supply Chain Professionals Negotiation for Procurement and Supply Chain Professionals
Negotiation for Procurement and Supply Chain Professionals
2025년
Sustainable Procurement Sustainable Procurement
Sustainable Procurement
2023년