The Effect of Regional Expenditure, Population Density, HDI, and Ict-Di Toward Environmental Performance Index of 34 Provinces in Indonesia. Efficient: Indonesian Journal of Development Economics, [S. l.], v. 7, n. 1, p. 64–72, 2024. DOI: 10.15294/v02d5j56. Disponível em: https://journal.unnes.ac.id/journals/efficient/article/view/4835. Acesso em: 5 dec. 2025.