CHENG, J. M. Differentiating Bullish From Bearish Factors In The Arbitrage Pricing Theory. American Journal of Business Education (AJBE), [S. l.], v. 3, n. 9, p. 13–16, 2010. DOI: 10.19030/ajbe.v3i9.475. Disponível em: https://clutejournals.com/index.php/AJBE/article/view/475. Acesso em: 17 jul. 2024.