SOME RULE OF THE SPECULATION IN THE STOCK EXCHANGE. Research Bulletins of the Faculty of Economic Sciences, [S. l.], v. 1, n. 15, p. 153–158, 2021. Disponível em: https://ezeszyty.wne.tu.koszalin.pl/index.php/zeszyty/article/view/230. Acesso em: 20 jul. 2025.