Document Type : Research Paper
Authors
1 profossor
2 Assistant Professor Professor of Geography and Urban Planning Department of Tehran University
3 Phd Student , university of tehran
Abstract
Keywords
منابع
Zunzunegui, M.V., Beatriz E.A., Teodoro D.S., and Angel, O .2003. Social networks, social integration, and social engagement determine cognitive decline in community-dwelling Spanish older adults. The journals of gerontology. Series B, Psychological Sciences and Social Sciences. 58: 2