The Effect of Environmental Tax - Spending Mix on Province Air Quality. Signifikan: Jurnal Ilmu Ekonomi, [S. l.], v. 12, n. 2, p. 221–230, 2024. DOI: 10.15408/sjie.v12i2.32395. Disponível em: https://journal.uinjkt.ac.id/signifikan/article/view/32395. Acesso em: 7 jun. 2026.