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Olena O. Volvach. Formation and Management of a Business Portfolio of Electronic Payment Systems in the E-Commerce Market
: Доктор філософії :
spec.. 073 - Менеджмент :
presented. 2024-04-19; popup.evolution: o;
Taras Shevchenko National University of Kyiv. – Київ, 0824U001404.
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Updated: 2026-03-24
