Lua APA (7ú heag.)

Siytangco, D. M. (1989). A determined President. Manila Bulletin.

Lua i Stíl Chicago (17ú heag.)

Siytangco, Deedee M. "A Determined President." Manila Bulletin 1989.

Lua MLA (9ú heag.)

Siytangco, Deedee M. "A Determined President." Manila Bulletin, 1989.

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