Timonera, B. (2001). GMA wants mothballed national steel to reopen. Manila Times.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTimonera, Bobby. "GMA Wants Mothballed National Steel to Reopen." Manila Times 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रTimonera, Bobby. "GMA Wants Mothballed National Steel to Reopen." Manila Times, 2001.
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