MUHAMMAD UMAR MAYAPUTRA; YUSRIZAL. Islamic Marketing within the Digital Economy: Ethical and Sustainable Practices in Indonesia’s Cellular Services Sector. EKONOMIKA SYARIAH : Journal of Economic Studies, [S. l.], v. 9, n. 2, p. 125–146, 2025. DOI: 10.30983/es.v9i2.10101. Disponível em: https://ejournal.uinbukittinggi.ac.id/index.php/febi/article/view/10101. Acesso em: 16 mar. 2026.