SHAH, Paresh. Testing for Linear and Non-Linear Causality in Spot and Future Prices of National Multi-Commodity Indices. Research Bulletin, [S. l.], v. 41, n. 3, p. 174–185, 2015. DOI: 10.33516/rb.v41i3.174-185p. Disponível em: http://icmai-rnj.in/index.php/rb/article/view/107111. Acesso em: 5 oct. 2024.