Al-Umlat al-Mutadawala fi al-Qatif wa al-Ahsa (Currencies in Circulation in al-Qatif and al-Ahsa)
A documentary study by Nizar Hasan Al Abd al-Jabbar of the currencies used by the people of al-Qatif and al-Ahsa from the tenth century AH to the Saudi era. It draws on local documents to trace the kinds of money, their names, their exchange rates and their effect on the economic life of the region.
Nizar Hasan Al Abd al-Jabbar