JONGADSAYAKUL, W. A Box Spread Test of the SET50 Index Options Market Efficiency: Evidence from the Thailand Futures Exchange. International Journal of Economics and Financial Issues, [S. l.], v. 6, n. 4, p. 1744–1749, 2016. Disponível em: https://econjournals.com/index.php/ijefi/article/view/2741. Acesso em: 20 apr. 2024.