21st Century Geography: 21st Century Geography. jornal of the libyan geographical society, [S. l.], v. 2, n. 2, p. 189–200, 1997. DOI: 10.5281/zenodo.18380589. Disponível em: https://jlgs.ly/ojs/index.php/ojsdata/article/view/24. Acesso em: 13 feb. 2026.