APA (7 वां संस्करण) प्रशस्ति पत्र

(2001). I PMS keeps PGH equipment in prime working conditions. Philippine Daily Inquirer.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

"I PMS Keeps PGH Equipment in Prime Working Conditions." Philippine Daily Inquirer 2001.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

"I PMS Keeps PGH Equipment in Prime Working Conditions." Philippine Daily Inquirer, 2001.

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