RAFI ULLAH JAN; USMAN AYUB; KHAN, Mrestyal; DANIYAL, Muhammad; KHAN, Ajaz. International Portfolio Diversification using Co-Integration Approach: Evidence from BRICS Countries. Journal of Economics, Finance and Accounting Studies , [S. l.], v. 2, n. 2, p. 30–42, 2020. Disponível em: https://al-kindipublishers.org/index.php/jefas/article/view/663. Acesso em: 15 nov. 2025.