Castro, L.S. and Silva Júnior, A.G. (2013) “Volatility analysis of sunflower oil prices in Brazil from 1960 to 2011”, Revista de Política Agrícola, 22(2), pp. 76–84. Available at: https://rpa.sede.embrapa.br/RPA/article/view/309 (Accessed: 20 September 2026).