Congressional Research and Training Service. (1991). The Philippine legislature. The Service.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCongressional Research and Training Service. The Philippine Legislature. [Quezon City]: The Service, 1991.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCongressional Research and Training Service. The Philippine Legislature. The Service, 1991.
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