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31. N.A. Shchuchkin: Introduction to n-group theory (in Russian), Izdat. Volgograd State Univ., Volgograd 2019
32. M. Akram, F. Zafar: Hybrid soft computing models applied to graph theory, Studies in Fuzziness and Soft Computing, vol.380, 2020
33. K.T. Atanassov: Interval-valued intuitionistic fuzzy sets, Studies in Fuzziness and Soft Computing, vol.388, 2020
34. M. Akram, A. Luqman: Fuzzy hypergraphs and related extensions, Studies in Fuzziness and Soft Computing, vol.390, 2020
35. O. Kosheleva O, S. Shary, G. Xiang, R. Zapatrin: Beyond Traditional Probabilistic Data Processing Techniques, Studies in Computational Intelligence, vol. 835, 2020
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37. S. Duplij: Polyadic Algebraic Structures, Institute of Physics, Bristol, UK 2022 ISBN: 978-0-7503-2646-9
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40. M. Akram, Shumaiza, J. C. R. Alcantud: Multi-criteria decision making methods with bipolar fuzzy sets, Springer 2023 ISBN 978-981-99-0569-0
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