(2022). Sustainable Extraction and Processing of Raw Materials Journal. University of Mining and Geology “St. Ivan Rilski”.
Style de citation Chicago (17e éd.)Sustainable Extraction and Processing of Raw Materials Journal. University of Mining and Geology “St. Ivan Rilski”, 2022.
Style de citation MLA (9e éd.)Sustainable Extraction and Processing of Raw Materials Journal. University of Mining and Geology “St. Ivan Rilski”, 2022.
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