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| .., .. // . 89. .: , 2021. .5-44. DOI: https://doi.org/10.25728/ubs.2021.89.1
(: 2110, : 1856, : 16)
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| .., .. // . 89. .: , 2021. .45-72. DOI: https://doi.org/10.25728/ubs.2021.89.2
(: 2025, : 1356, : 12)
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| .. - - // . 89. .: , 2021. .73-105. DOI: https://doi.org/10.25728/ubs.2021.89.3
(: 2040, : 790, : 17)
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| .. // . 89. .: , 2021. .106-122. DOI: https://doi.org/10.25728/ubs.2021.89.4
(: 2068, : 3264, : 20)
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