Estimating the shadow economy using the currency demand method: An applied study on the Kingdom of Saudi Arabia during the period (2012-2023). Int. J. Financ. Admin. Econ. Sci. [Internet]. 2025 Dec. 15 [cited 2026 Aug. 30];4(12). Available from: https://www.vsrp.co.uk/index.php/ijfaes/article/view/370