(2006). RP 17th happiest country survey. Manila Times.
Lua i Stíl Chicago (17ú heag.)"RP 17th Happiest Country Survey." Manila Times 2006.
Lua MLA (9ú heag.)"RP 17th Happiest Country Survey." Manila Times, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.