Herrera, E. F. (2002). Charter change through people's initiative. IN Policy peek [column]: The lesser evil? Manila Times.
Cita Chicago (17th ed.)Herrera, Ernesto F. "Charter Change Through People's Initiative. IN Policy Peek [column]: The Lesser Evil?" Manila Times 2002.
Cita MLA (9th ed.)Herrera, Ernesto F. "Charter Change Through People's Initiative. IN Policy Peek [column]: The Lesser Evil?" Manila Times, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.