Evaluating the effectiveness of palm oil as bio-aviation fuel on Indonesia aviation industry: Reducing emissions and opportunity of having carbon allowances . Journal of Social Economics Research, [S. l.], v. 12, n. 4, p. 218–234, 2025. DOI: 10.18488/35.v12i4.4549. Disponível em: https://archive.conscientiabeam.com/index.php/35/article/view/4549. Acesso em: 1 aug. 2026.