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Published Articles by O. Koval
- Title: Gender Differences in Mathematics and Science Achievement of Eighth Grade Students in Ukraine on TIMSS 2011
Authors: Tetiana V. Lisova, Yuriy O. Kovalchuk
Doi: 10.37394/232024.2021.1.8
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Published in Earth Sciences and Human Constructions, Volume 1, 2021 - Title: Investigation of gas-liquid mixture flow in the stage submersible pump
Authors: O. Shudryk, N. Shevchenko, O. Koval
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Published in WSEAS Transactions on Heat and Mass Transfer, Volume 14, 2019