Why I protest: Olmo Glavez of Spain // Time Magazine. – 26 December 2011. – Прим. авт.
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World of Music, Arts and Dance – мир музыки, искусств и танца. – Прим. ред.
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Evaluation of Evidence-Based Practices in Online Learning: A Meta-Analysis and Review of Online Learning Studies. – US Dept. of Education. – May 2009. – Прим. авт.
