Gacutan, H. P. (2001). The Senate and its leadership. Manila Bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGacutan, Hezel P. "The Senate and Its Leadership." Manila Bulletin 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGacutan, Hezel P. "The Senate and Its Leadership." Manila Bulletin, 2001.
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