CHAREF, O. The Effectiveness of the promotional mix elements in customer perception of the value "study of a sample of customers Mobilis"of the product. Finance and Business Economies Review, [S. l.], v. 4, n. 1, p. 108–125, 2020. DOI: 10.58205/fber.v4i1.590. Disponível em: https://jiamcs.centre-univ-mila.dz/index.php/fber/article/view/590. Acesso em: 27 jul. 2024.