SOWARI BIEDIMA, J. LOCUS CONTROL AND BUSINESS GROWTH OF ALUMINUM ROOFING SHEET COMPANIES IN PORT HARCOURT, RIVERS STATE. BW Academic Journal, [S. l.], p. 9, 2024. Disponível em: https://www.bwjournal.org/index.php/bsjournal/article/view/2207. Acesso em: 30 may. 2026.