Optimal Strategies in Industrial Environmental Managemant: Contribution to Air Quality Control at PT United Tractors. Ecotrends, [S. l.], v. 1, n. 1, p. 1–12, 2025. Disponível em: https://journal.uns.ac.id/index.php/ec/article/view/1335. Acesso em: 5 feb. 2025.