Austria, M. S. (2003). ASEAN Free Trade Area. IN Business focus [column]: Lessons and challenges. Manila Bulletin.
Lua i Stíl Chicago (17ú heag.)Austria, Myrna S. "ASEAN Free Trade Area. IN Business Focus [column]: Lessons and Challenges." Manila Bulletin 2003.
Lua MLA (9ú heag.)Austria, Myrna S. "ASEAN Free Trade Area. IN Business Focus [column]: Lessons and Challenges." Manila Bulletin, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.