توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

(1999). Ako. Office of the Vice-Chancellor for Research and Development, Office of the Vice-Chancellor for Academic Affairs, Departamento ng Filipino at Panitikan ng Pilipinas, University of the Philippines, Diliman.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Ako. Quezon City: Office of the Vice-Chancellor for Research and Development, Office of the Vice-Chancellor for Academic Affairs, Departamento ng Filipino at Panitikan ng Pilipinas, University of the Philippines, Diliman, 1999.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Ako. Office of the Vice-Chancellor for Research and Development, Office of the Vice-Chancellor for Academic Affairs, Departamento ng Filipino at Panitikan ng Pilipinas, University of the Philippines, Diliman, 1999.