Carlos, A. S., & Sampan, J. M. M. Looking beyond wealth: The Philippine national happiness index as a complement for traditional income measures.
Chicago-referens (17:e uppl.)Carlos, Aries S., och John Michael M. Sampan. Looking Beyond Wealth: The Philippine National Happiness Index as a Complement for Traditional Income Measures.
MLA-referens (9:e uppl.)Carlos, Aries S., och John Michael M. Sampan. Looking Beyond Wealth: The Philippine National Happiness Index as a Complement for Traditional Income Measures.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.