AYAGI, S. R. .; ADAM, U. M. . Cost of Capital and Investment Efficiency: A Critical Review of Empirical Literature. Gusau International Journal of Management and Social Sciences, [S. l.], v. 7, n. 1, p. 23–37, 2024. DOI: 10.57233/gijmss.v7i1.02. Disponível em: https://gijmss.com.ng/index.php/gijmss/article/view/215. Acesso em: 14 oct. 2025.