“NATIONAL POLICY OF QUALITY, THE IMPLEMENTATION OF ISO SYSTEMS BY LARGE TRANSPORT CORPORATIONS ORIENTATED ON A MANAGEMENT OF QUALITY”. Perner’s Contacts 5, no. 4 (December 30, 2010): 46–50. Accessed March 3, 2026. https://ojs-demo.upce.cz/index.php/perner/article/view/1041.