YANG, Ning. Problems and Countermeasures in the Infrastructure of Grass-roots Petition Handling Work. International Journal of Education and Social Development, [S. l.], v. 5, n. 1, p. 185–188, 2025. DOI: 10.54097/p34z9q63. Disponível em: https://ijesd.com/index.php/ijesd/article/view/291. Acesso em: 26 jul. 2026.