Departamento de Justicia de los Estados Unidos de América, División Antitrust. Price Fixing and Bid Rigging, They Happen: What They Are and What to Look For.
وزارة العدل في الولايات المتحدة، إدارة مكافحة الاحتكار.Price Fixing and Bid Rigging, They Happen: What They Are and What to Look For.