Guelmine MohamedHichem, and Benmakrelouf Khaled. “TheeffectoftheCOVID-19pandemicontheAlgerianshareofoil Products Exports Market”. Human Resources Development Research 17, no. 01 (October 28, 2026): 791–811. Accessed November 2, 2026. https://rdrh.univ-setif2.dz/index.php/rdrh/article/view/344.