1. Social Gerontology Laboratory, Malaysian Research Institute on Ageing, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
2. Department of Human Development and Family Studies, Faculty of Human Ecology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
3. Department Resource Management and Consumer Studies, Faculty of Human Ecology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia