De Vera, R. (2002). Doreen 67: Teacher, writer, historian, friend. Philippine Daily Inquirer.
Lua i Stíl Chicago (17ú heag.)De Vera, Ruel. "Doreen 67: Teacher, Writer, Historian, Friend." Philippine Daily Inquirer 2002.
Lua MLA (9ú heag.)De Vera, Ruel. "Doreen 67: Teacher, Writer, Historian, Friend." Philippine Daily Inquirer, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.