1. World Health Organization. Integrated Care for Older People: Guidelines on Community-Level Interventions to Manage Declines in Intrinsic Capacity. Geneva; 2017.
2. Department of Provincial Administration, Ministry of Interior. Older statistics in Thailand 77 as of December 31, 2019. Available from: http://www.dop.go.th/th/know/side/1/1/275. Accessed December 30, 2020.