Sibayan, B. P. (2001). The failure in educating Filipino children through their native languages and through Filipino. IN Educators speak [column]. Manila Bulletin.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিSibayan, Bonifacio P. "The Failure in Educating Filipino Children Through Their Native Languages and Through Filipino. IN Educators Speak [column]." Manila Bulletin 2001.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিSibayan, Bonifacio P. "The Failure in Educating Filipino Children Through Their Native Languages and Through Filipino. IN Educators Speak [column]." Manila Bulletin, 2001.
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