De la Cruz. (2001). how ransom was paid. Philippine Daily Inquirer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDe la Cruz. "How Ransom Was Paid." Philippine Daily Inquirer 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDe la Cruz. "How Ransom Was Paid." Philippine Daily Inquirer, 2001.
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