Hubbard, J. DZFE: An apostolate of fine music. Musical journal of the Philippines..
Lua i Stíl Chicago (17ú heag.)Hubbard, John. "DZFE: An Apostolate of Fine Music." Musical Journal of the Philippines. .
Lua MLA (9ú heag.)Hubbard, John. "DZFE: An Apostolate of Fine Music." Musical Journal of the Philippines., .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.