共 44 条
[1]
[Anonymous], 1999, FDN DEMOGRAPHIC THEO
[2]
[Anonymous], SHOULD AULD ACQUAINT
[3]
Antonucci T.C., 1986, Generations: Journal of the American Society on Aging, V10, P10
[5]
SOCIAL-NETWORK CONTACT, FAMILY SUPPORT, AND THE TRANSITION TO PARENTHOOD
[J].
JOURNAL OF MARRIAGE AND THE FAMILY,
1984, 46 (02)
:455-462
[6]
Bernardi L, 2003, POPUL RES POLICY REV, V22, P527
[7]
Bernardi L., 2002, THESIS U ROMA SAPIEN
[10]
Creswell J.W., 2014, Research design: Qualitative, quantitative and mixed methods approaches, V4th, DOI DOI 10.5539/ELT.V12N5P40