Batino, M. C. S. (2002). Phone cards firms biggest cheats - BIR. Philippine Daily Inquirer.
芝加哥风格引文Batino, Ma. Clarissa S. "Phone Cards Firms Biggest Cheats - BIR." Philippine Daily Inquirer 2002.
MLA引文Batino, Ma. Clarissa S. "Phone Cards Firms Biggest Cheats - BIR." Philippine Daily Inquirer, 2002.
警告：这些引文格式不一定是100％准确.