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Lua i Stíl Chicago (17ú heag.)Doronila, Amando. "Erap Approach Fuels Cha-cha Resistance. IN Analysis [column]." Philippine Daily Inquirer 1999.
Lua MLA (9ú heag.)Doronila, Amando. "Erap Approach Fuels Cha-cha Resistance. IN Analysis [column]." Philippine Daily Inquirer, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.