APA (7 वां संस्करण) प्रशस्ति पत्र

(2001). Keeping our Philippine heritage safe and intact is no easy task. Manila Bulletin.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

"Keeping Our Philippine Heritage Safe and Intact Is No Easy Task." Manila Bulletin 2001.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

"Keeping Our Philippine Heritage Safe and Intact Is No Easy Task." Manila Bulletin, 2001.