Sibayan, B. P. (2001). The failure in educating Filipino children through their native languages and through Filipino. IN Educators speak [column]. Manila Bulletin.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sibayan, Bonifacio P. "The Failure in Educating Filipino Children Through Their Native Languages and Through Filipino. IN Educators Speak [column]." Manila Bulletin 2001.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Sibayan, Bonifacio P. "The Failure in Educating Filipino Children Through Their Native Languages and Through Filipino. IN Educators Speak [column]." Manila Bulletin, 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.