Samaniego, T. S. Green technology gives tunnel new light. IN Property. Philippine Daily Inquirer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSamaniego, Theresa S. "Green Technology Gives Tunnel New Light. IN Property." Philippine Daily Inquirer .
एमएलए (9वां संस्करण) प्रशस्ति पत्रSamaniego, Theresa S. "Green Technology Gives Tunnel New Light. IN Property." Philippine Daily Inquirer, .
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