Kelleche A, Khantar N. The Importance of Improving the Business Environment in Promoting the Competiveness of the Tourism Sector in Algeria: A Comparative Study with a Group of Arab Countries. aja [Internet]. 2021 Dec. 1 [cited 2025 Dec. 28];41(4):159-78. Available from: https://ajajournal.org/aja/article/view/253