LU, Hongna. Investigation and Countermeasure Research on the Current Situation of Children’s Swimming Training in Xi’an High-tech Zone during Summer Vacation. International Journal of Social Sciences and Public Administration, [S. l.], v. 7, n. 1, p. 20–28, 2025. DOI: 10.62051/ijsspa.v7n1.03. Disponível em: https://ijsspa.org/index.php/ojs/article/view/67. Acesso em: 19 apr. 2026.