APA (7 वां संस्करण) प्रशस्ति पत्र

Agatep, C. (2002). What PR is all about. IN Commentary [column]. Philippine Daily Inquirer.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Agatep, Charlie. "What PR Is All About. IN Commentary [column]." Philippine Daily Inquirer 2002.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Agatep, Charlie. "What PR Is All About. IN Commentary [column]." Philippine Daily Inquirer, 2002.