Mahmud Niaz, Hasan, y Irene García Medina. 2018. «Vodafone:The Relationship Between Brand Image and Online Marketing Strategies». IROCAMM - International Review Of Communication And Marketing Mix, n.º 1 (septiembre):7-31. https://revistascientificas.us.es/index.php/IROCAMM/article/view/5619.