Philippines & Philippines. President (1986- : Aquino). (1989). Administrative code of 1987 (Executive Order No.292). National Print Off.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippines और Philippines. President (1986- : Aquino). Administrative Code of 1987 (Executive Order No.292). Manila: National Print Off, 1989.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippines और Philippines. President (1986- : Aquino). Administrative Code of 1987 (Executive Order No.292). National Print Off, 1989.
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