Chibout, S., A. Rouabeh, and I. Imessellem. “Measuring the Extent of Correlation of Tourism Investment Spending With Economic Growth in Algeria During the Period (1995-2017(”. Dirassat Journal Economic Issue, Vol. 12, no. 1, Jan. 2021, pp. 369-86, doi:10.34118/djei.v12i1.1172.