Aberji, Khadija. “Les Cooperatives Et La Gestion De La Relation Client (CRM) : Quelles Demarches De Perfectionnement ?”. European Scientific Journal, ESJ 15, no. 10 (April 30, 2019): 205. Accessed July 1, 2022. https://eujournal.org/index.php/esj/article/view/11992.