Mapa, D. S., Bersales, L. G. S., Albis, M. L. F., & Daquis, J. C. P. (2011). Determinants of poverty in elderly-headed households in the Philippines. Transactions of the National Academy of Science and Technology.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Mapa, Dennis S., Lisa Grace S. Bersales, Manuel Leonard F. Albis, و John Carlo P. Daquis. "Determinants of Poverty in Elderly-headed Households in the Philippines." Transactions of the National Academy of Science and Technology 2011.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Mapa, Dennis S., et al. "Determinants of Poverty in Elderly-headed Households in the Philippines." Transactions of the National Academy of Science and Technology, 2011.
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