Villegas, A. E. (1982). The extent of involvement of SAC/SUC in family planning campaign: Final report submitted to the Commission on Population Region XII by the Socio-Economic Research Center in May 1982. Notre Dame University, Socio-Economic Research Center.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Villegas, Alfonso E. The Extent of Involvement of SAC/SUC in Family Planning Campaign: Final Report Submitted to the Commission on Population Region XII by the Socio-Economic Research Center in May 1982. Cotabato City: Notre Dame University, Socio-Economic Research Center, 1982.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Villegas, Alfonso E. The Extent of Involvement of SAC/SUC in Family Planning Campaign: Final Report Submitted to the Commission on Population Region XII by the Socio-Economic Research Center in May 1982. Notre Dame University, Socio-Economic Research Center, 1982.