Del Castillo, L. (2002). Quezon City IT college makes education, preparing students for life their business. Manila Times.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Del Castillo, Leah. "Quezon City IT College Makes Education, Preparing Students for Life Their Business." Manila Times 2002.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Del Castillo, Leah. "Quezon City IT College Makes Education, Preparing Students for Life Their Business." Manila Times, 2002.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.