Arenas, A. C. (1999). Multimedia the key to education in the 21st century. IN Views/comments/features [column]. Manila Bulletin.
Chicago-referens (17:e uppl.)Arenas, Aggie Carson. "Multimedia the Key to Education in the 21st Century. IN Views/comments/features [column]." Manila Bulletin 1999.
MLA-referens (9:e uppl.)Arenas, Aggie Carson. "Multimedia the Key to Education in the 21st Century. IN Views/comments/features [column]." Manila Bulletin, 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.