Duldulao, M. D. (2007). A century of Philippine legislature: Timelines of events, people, and laws that shaped the Filipino nation. Unang Letra Pub.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Duldulao, Manuel D. A Century of Philippine Legislature: Timelines of Events, People, and Laws That Shaped the Filipino Nation. Pasig City: Unang Letra Pub, 2007.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Duldulao, Manuel D. A Century of Philippine Legislature: Timelines of Events, People, and Laws That Shaped the Filipino Nation. Unang Letra Pub, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.