De Leon, M. V. (2005). Malacanang concerned over the state of Yorac's health. Manila Times.
Chicago-viite (17. p.)De Leon, Max V. "Malacanang Concerned over the State of Yorac's Health." Manila Times 2005.
MLA-viite (9. p.)De Leon, Max V. "Malacanang Concerned over the State of Yorac's Health." Manila Times, 2005.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.