Mounir, Amer Same, and Kheirallah R. Zedan Alawi. “The Impact of Fluctuation in Oil Prices on Foreign Direct Investment Period (2004-2019) As a Model Algeria”. Tikrit Journal of Administrative and Economic Sciences, vol. 17, no. 55, 2, Sept. 2021, pp. 540-54, doi:10.25130/tjaes.17.55.2.31.