توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Simbulan, R. G. (2018). The historic senate vote of 16 September 1991: Looking back and looking forward twenty-five years after. Philippine Studies : Historical and Ethnographic Viewpoints.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Simbulan, Roland G. "The Historic Senate Vote of 16 September 1991: Looking Back and Looking Forward Twenty-five Years After." Philippine Studies : Historical and Ethnographic Viewpoints 2018.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Simbulan, Roland G. "The Historic Senate Vote of 16 September 1991: Looking Back and Looking Forward Twenty-five Years After." Philippine Studies : Historical and Ethnographic Viewpoints, 2018.