Arenas, A. C. (1999). Multimedia the key to education in the 21st century. IN Views/comments/features [column]. Manila Bulletin.
Lua i Stíl Chicago (17ú heag.)Arenas, Aggie Carson. "Multimedia the Key to Education in the 21st Century. IN Views/comments/features [column]." Manila Bulletin 1999.
Lua MLA (9ú heag.)Arenas, Aggie Carson. "Multimedia the Key to Education in the 21st Century. IN Views/comments/features [column]." Manila Bulletin, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.