Perpeña, E. C. (2001). Time is ripe to reform the banking system. Manila Times.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPerpeña, Ed C. "Time Is Ripe to Reform the Banking System." Manila Times 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPerpeña, Ed C. "Time Is Ripe to Reform the Banking System." Manila Times, 2001.
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