APA (7 वां संस्करण) प्रशस्ति पत्र

(2001). GMA honors PAF chief for excellent leadership. Manila Times.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

"GMA Honors PAF Chief for Excellent Leadership." Manila Times 2001.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

"GMA Honors PAF Chief for Excellent Leadership." Manila Times, 2001.