1. Ananta A. Bakhtiar 2005 ‘Who are “the lower class” in Riau Archipelago, Indonesia?’ revised draft of a paper presented at the sixth annual population researcher conference onLinkage between Population and Millennium Development Goals: The Asian PerspectiveIslamabad Pakistan 29 November–1 December
2. 10. Some Economic Demographic Aspects of 'Ageing'
3. ETHNICITY AND AGEING IN INDONESIA, 2000–2050
4. Ananta A. Sugihardjo Setiadi D. 1995 Population Projection 1995–2025: East Java, West Java, West Sumatra Demographic Institute, Faculty of Economics, University of Indonesia, Depok