1. Bronfenbrenner, U. (1994). Ecological models of human development. In: International encyclopedia of education, vol 3, 2nd ed. Oxford: Elsevier.
2. Browne, C. V., Braun, K. L., & Arnsberger, P. (2007). Filipinas as residential long-term care providers: influence of cultural values, structural inequity, and immigrant status on choosing this work. Journal of Gerontological Social Work, 48(3–4), 439–455.
3. Bureau of Budget and Planning, Republic of Palau (2010). The 2010 census of population and housing. Office of Planning and Statistics, Republic of Palau
4. Central Intelligence Agency (2009). The World Factbook 2009. Washington, DC: Central Intelligence Agency, 2009. https://www.cia.gov/library/publications/the-world-factbook/index.html . Accessed Jan 2013.
5. Chen, T. H., Buenconsejo-Lum, L. E., & Palafox, N. A. (2007). Pacific basin health worker training in the United States-Affiliated Pacific Islands: needs assessment and priorities for a continuing health care professional development program: executive summary. Pacific Health Dialog, 14(1), 15–21.