Herrera, C. (2002). Ople vows world-class foreign service at DFA. Philippine Daily Inquirer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHerrera, Christine. "Ople Vows World-class Foreign Service at DFA." Philippine Daily Inquirer 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHerrera, Christine. "Ople Vows World-class Foreign Service at DFA." Philippine Daily Inquirer, 2002.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.