POLITICAL ECONOMY OF BACKWARD INTEGRATION IN THE NIGERIAN CEMENT INDUSTRY, 1999-2012. International Journal of Accounting Research (IJAR), [S. l.], v. 2, n. 2, p. 1–27, 2014. Disponível em: https://j.arabianjbmr.com/index.php/ijar/article/view/58. Acesso em: 17 sep. 2026.