共 63 条
[51]
United Nations Development Program, 2010, 200910 UN DEV PROGR
[56]
Xu XB, 2001, SOC POLICY ADMIN, V35, P307
[57]
Ye J., 2008, Lonely sunsets: The elderly left behind in rural China
[60]
Yu C., 2002, Evaluating cutoff criteria of model fit indices for latent variable models with binary and continuous outcomes