APA (7 वां संस्करण) प्रशस्ति पत्र

(2001). Erap vows support for Arroyo but vows to retake presidency if GMA bungles the job. Philippine Star.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

"Erap Vows Support for Arroyo but Vows to Retake Presidency If GMA Bungles the Job." Philippine Star 2001.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

"Erap Vows Support for Arroyo but Vows to Retake Presidency If GMA Bungles the Job." Philippine Star, 2001.