WANG, Yi. Problems and Transformation Plan of the Elderly Community in Beijing. BCP Business & Management, [S. l.], v. 15, p. 117–122, 2021. DOI: 10.54691/bcpbm.v15i.230. Disponível em: https://bcpublication.org/index.php/BM/article/view/230. Acesso em: 22 aug. 2026.