Carlos, A. S., & Sampan, J. M. M. Looking beyond wealth: The Philippine national happiness index as a complement for traditional income measures.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Carlos, Aries S., و John Michael M. Sampan. Looking Beyond Wealth: The Philippine National Happiness Index as a Complement for Traditional Income Measures.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Carlos, Aries S., و John Michael M. Sampan. Looking Beyond Wealth: The Philippine National Happiness Index as a Complement for Traditional Income Measures.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.