The Effect of Export Tax on Indonesia Palm Oil Derivative Products. Efficient: Indonesian Journal of Development Economics, [S. l.], v. 7, n. 1, p. 73–81, 2024. DOI: 10.15294/efficient.v7i1.4837. Disponível em: https://journal.unnes.ac.id/journals/efficient/article/view/4837. Acesso em: 6 feb. 2026.