CHOI, D. Using Calls And Puts As Risk Management Tools. Journal of Business & Economics Research (JBER), [S. l.], v. 3, n. 1, 2005. DOI: 10.19030/jber.v3i1.2734. Disponível em: https://clutejournals.com/index.php/JBER/article/view/2734. Acesso em: 17 jul. 2024.