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Information × Registration Number 2114U002199, Article popup.category Thesis Title popup.author popup.publication 01-01-2014 popup.source_user Сумський державний університет popup.source http://essuir.sumdu.edu.ua/handle/123456789/34858 popup.publisher Сумський державний університет Description Nowadays, one of the most important purposes of mankind is to make world safer. It is not surprising because our generation have faced with a lot of environmental, social, economic and health problems. Although most of these problems are caused by people activity only people can change their life for better. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/34858 popup.nrat_date 2025-05-12 Close