ASHRAF, A.; IQBAL, A. Letter from the Executive Editors. International Journal of Alternative Fuels and Energy, [S. l.], v. 3, n. 2, p. 44–45, 2019. Disponível em: https://psmjournals.org/index.php/ijafe/article/view/370. Acesso em: 20 feb. 2026.