ПросмотрEducation and science in the 21st century : articles of the International Scientific and Practical Conference, 2017 yr. по теме "Social, humanitarian and economic problems of education and science development in the 21th century"
Просмотр Education and science in the 21st century : articles of the International Scientific and Practical Conference, 2017 yr. по теме
ISSN 2522-1647
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ПросмотрEducation and science in the 21st century : articles of the International Scientific and Practical Conference, 2017 yr. по теме "Social, humanitarian and economic problems of education and science development in the 21th century"