Coals transportation’s steep route to realization. Sustainability (STPP) Theory, Practice and Policy, [S. l.], v. 1, n. 1, p. 30–43, 2023. DOI: 10.30631/sdgs.v1i1.905. Disponível em: https://e-journal.lp2m.uinjambi.ac.id/ojp/index.php/SDGs/article/view/905. Acesso em: 23 nov. 2025.