Cortes, J. R., Salvador, L. G., & Brawner, F. G. (1991). Research and special studies and technical assistance as support mechanisms. University of the Philippines College of Education.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Cortes, Josefina Rian, Lourdes G. Salvador, و Filma G. Brawner. Research and Special Studies and Technical Assistance as Support Mechanisms. [Quezon City: University of the Philippines College of Education, 1991.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Cortes, Josefina Rian, et al. Research and Special Studies and Technical Assistance as Support Mechanisms. University of the Philippines College of Education, 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.