Tan, E. K. (1987). The economic cost of child-rearing in Region XII: A local government and corporate strategy : final report submitted to Population Commission Region XII by the Socio-Economic Research Center, September 1987. Notre Dame University, Socio-Economic Research Center.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Tan, Eva Kimpo-. The Economic Cost of Child-rearing in Region XII: A Local Government and Corporate Strategy : Final Report Submitted to Population Commission Region XII by the Socio-Economic Research Center, September 1987. Cotabato City: Notre Dame University, Socio-Economic Research Center, 1987.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Tan, Eva Kimpo-. The Economic Cost of Child-rearing in Region XII: A Local Government and Corporate Strategy : Final Report Submitted to Population Commission Region XII by the Socio-Economic Research Center, September 1987. Notre Dame University, Socio-Economic Research Center, 1987.