Abstract: The integration of the QR payment mode with GSM-operated vending machines presents a modern solution that combines the convenience of digital payments with the familiarity and accessibility ...

Abstract: The rapid advancement of digital technologies has greatly impacted financial systems, creating challenges in accurately classifying currencies and detecting counterfeits in various ...

SOFIA, Bulgaria(AP) — Bulgarians began withdrawing euros for the first time on Thursday after the former communist nation joined the euro currency union as its 21st member. Cash machines in the ...

SOFIA, Bulgaria (AP) — Bulgarians began withdrawing euros for the first time on Thursday after the former communist nation joined the euro currency union as its 21st member. Cash machines in the ...