APA (7 वां संस्करण) प्रशस्ति पत्र

(2001). GMA to promote RP as investment haven. Philippine Graphic.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

"GMA to Promote RP as Investment Haven." Philippine Graphic 2001.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

"GMA to Promote RP as Investment Haven." Philippine Graphic, 2001.