SEEBUT, S. Mathematical modeling of stock market states using the system of difference equation . Journal of Science and Science Education (JSSE), [S. l.], v. 3, n. 2, p. 200–208, 2020. Disponível em: https://so04.tci-thaijo.org/index.php/JSSE/article/view/245139. Acesso em: 17 apr. 2025.