Mediated Power Influence on Relationship Strength and Supplier Performance in the South African Construction Sector. International Journal of Advanced Business Studies, [S. l.], v. 5, n. 3, p. 17–52, 2026. DOI: 10.59857/8zccms80. Disponível em: https://besra-journals.net/index.php/ijabs/article/view/191. Acesso em: 16 may. 2026.