APA (7 वां संस्करण) प्रशस्ति पत्र

Unite, B. Villar sacks DPWH engineer over ₱20-M extortion attempt. IN News. Manila Bulletin.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Unite, Betheena. "Villar Sacks DPWH Engineer over ₱20-M Extortion Attempt. IN News." Manila Bulletin .

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Unite, Betheena. "Villar Sacks DPWH Engineer over ₱20-M Extortion Attempt. IN News." Manila Bulletin, .