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Lua i Stíl Chicago (17ú heag.)Jabal, Ron F. "Communicating in the Fourth Industrial Revolution." Philippine Daily Inquirer .
Lua MLA (9ú heag.)Jabal, Ron F. "Communicating in the Fourth Industrial Revolution." Philippine Daily Inquirer, .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.