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शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAguirre, Vyva Victoria Magsarili. Subject and Title Index to Executive Orders, February 25, 1986-July 26, 1987. Quezon City: U.P. Legal Resources Center, 1987.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAguirre, Vyva Victoria Magsarili. Subject and Title Index to Executive Orders, February 25, 1986-July 26, 1987. U.P. Legal Resources Center, 1987.
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