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Lua i Stíl Chicago (17ú heag.)Villaviray, Johnna. "Congress Rushing Ok of Money Bill / Johnna Villaviray and John Anthony Concepcion." Manila Times 2001.
Lua MLA (9ú heag.)Villaviray, Johnna. "Congress Rushing Ok of Money Bill / Johnna Villaviray and John Anthony Concepcion." Manila Times, 2001.
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