Factors Determining the Exchange Rate in the Unofficial Market and Their Impact on Domestic Investment in the Libyan Economy: An Econometric Study Using the ARDL Model During the Period (1990-2025). Comprehensive Journal of Science, [S. l.], v. 11, n. ملحق 41, p. 1317–1327, 2026. DOI: 10.65405/fn83w754. Disponível em: https://cjos.histr.edu.ly/index.php/journal/article/view/2322. Acesso em: 7 aug. 2026.