SHEN, J.; TAKAHASHI, H. The tangibility effect of paper money and coins in an investment experiment. Economics and Business Letters, [S. l.], v. 6, n. 1, p. 1–5, 2017. Disponível em: http://156.35.33.188/index.php/EBL/article/view/11222. Acesso em: 17 sep. 2026.