Herrera, E. F. (2002). Charter change through people's initiative. IN Policy peek [column]: The lesser evil? Manila Times.
Chicago Style (17. basım) AtıfHerrera, Ernesto F. "Charter Change Through People's Initiative. IN Policy Peek [column]: The Lesser Evil?" Manila Times 2002.
MLA (9th ed.) AtıfHerrera, Ernesto F. "Charter Change Through People's Initiative. IN Policy Peek [column]: The Lesser Evil?" Manila Times, 2002.
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