PURBA, H. J.; SINAGA, B. M.; NOVIANTI, T.; KUSTIARI, R. The Impact of Changes in External Factors on the World Vegetable Oil Market. International Journal of Economics and Financial Issues, [S. l.], v. 8, n. 6, p. 176–186, 2018. Disponível em: https://www.econjournals.com/index.php/ijefi/article/view/7069. Acesso em: 20 apr. 2024.