Orejas, T. T. (2003). Harmonizing nature and business. Philippine Daily Inquirer.
Lua i Stíl Chicago (17ú heag.)Orejas, Tonette T. "Harmonizing Nature and Business." Philippine Daily Inquirer 2003.
Lua MLA (9ú heag.)Orejas, Tonette T. "Harmonizing Nature and Business." Philippine Daily Inquirer, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.