Found in articles
Халыкара истәлекле период
War and Armed Conflict. UN. 2012-10-30 тикшерелгән. World Science Day for Peace and Development. UN. 2012-10-30 тикшерелгән. World Pneumonia Day. WHO
Phillips and other authors (2008), in Encyclopedia of Violence, Peace, & Conflict (Second Edition), ISBN 978-0-12-373985-8, Elsevier Science, Pages 1347–1356