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PUBLIC PROCUREMENT IN POLAND: EXPERIENCE FOR UKRAINE. Ekon. čas. Volins. nac. unìv. ìm. Lesì Ukraïnki [Internet]. 2019 Dec. 30 [cited 2024 May 4];4(20):166-72. Available from: https://echas.vnu.edu.ua/index.php/echas/article/view/519