NGO, Toan. Comparing the Predictive Power of Price-to-Earnings Ratio and Customer Satisfaction Index on Firm Performance. Journal of Policy Options, [S. l.], v. 6, n. 2, p. 28–35, 2023. Disponível em: https://resdojournals.com/index.php/jpo/article/view/313.. Acesso em: 5 feb. 2025.