Da farko, mutane sunyi amfani da tsarin barer don musayar kaya. Koyaya, wannan tsarin ba shi da tasiri saboda yana da wuya a iya tantance farashin musayar gaskiya.
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10 Abubuwan Ban Sha'awa About The history of money and currency exchange

10 Abubuwan Ban Sha'awa About The history of money and currency exchange