Inof, J. A. (1999). Sayyaf behind Belgian's kidnap. Philippine Daily Inquirer.
芝加哥风格引文Inof, Julie Alipala. "Sayyaf Behind Belgian's Kidnap." Philippine Daily Inquirer 1999.
MLA引文Inof, Julie Alipala. "Sayyaf Behind Belgian's Kidnap." Philippine Daily Inquirer, 1999.
警告：这些引文格式不一定是100％准确.