Philippines. National Economic and Development Authority. (2000). Project development and evaluation manual. National Economic and Development Authority.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Philippines. National Economic and Development Authority. Project Development and Evaluation Manual. Pasig City: National Economic and Development Authority, 2000.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Philippines. National Economic and Development Authority. Project Development and Evaluation Manual. National Economic and Development Authority, 2000.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.