The Influence of Reference Groups on Consumer Purchasing Behaviour: Field Study on Mobile Phone Users in Adrar City . مجلة إضافات إقتصادية, [S. l.], v. 9, n. 2, p. 907–888, 2026. DOI: 10.54246/jea.v9i2.1888. Disponível em: https://journals.univ-ghardaia.edu.dz/idafat/article/view/1888. Acesso em: 7 أكتوبر. 2026.