OKPIGHE, S. G. O.; MORUKU, R. K. BRAND DIFFERENTIATION STRATEGIES AND SUSTAINABLE COMPETITIVE ADVANTAGE OF MTN NIGERIA IN SOUTH-SOUTH REGION. African Journal of Social and Behavioural Sciences, [S. l.], v. 15, n. 2, 2025. Disponível em: https://journals.aphriapub.com/index.php/AJSBS/article/view/3069. Acesso em: 15 apr. 2025.