Cagahastian, D. (2004). RP ranks 83rd out of 177 countries in human development. Manila Bulletin.
Chicago-viite (17. p.)Cagahastian, David. "RP Ranks 83rd Out of 177 Countries in Human Development." Manila Bulletin 2004.
MLA-viite (9. p.)Cagahastian, David. "RP Ranks 83rd Out of 177 Countries in Human Development." Manila Bulletin, 2004.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.