CIA
World Factbook - Bulgaria, provides the flag, a
political map, and detailed information on geography, people, government, the
economy, communication, transportation, military, and transnational issues.
Library of Congress Country
Studies - Bulgaria, provides a searchable and very detailed book-length
portrait including geography, society, economy, transportation, telecommunications,
industry, infrastructure, politics, government, national security, history,
environment, religion, education, health care, and much more.
