ALI TAREK, B. Yield spread as a leading indicator of Tunisian industrial production. International Journal of Management Excellence (ISSN: 2292-1648), [S. l.], v. 2, n. 1, p. 93–112, 2013. Disponível em: https://techmindresearch.org/index.php/ijme/article/view/84. Acesso em: 13 oct. 2025.