APA (7 वां संस्करण) प्रशस्ति पत्र

Gonzales, I. C. (2020). Villar among Forbes Asia’s Heroes of Philanthropy. Philippine Star.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Gonzales, Iris Cecilia. "Villar Among Forbes Asia’s Heroes of Philanthropy." Philippine Star 2020.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Gonzales, Iris Cecilia. "Villar Among Forbes Asia’s Heroes of Philanthropy." Philippine Star, 2020.