Felipe, A. I. (2003). The duty to assess learning. IN Educators speak [column]. Manila Bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFelipe, Abraham I. "The Duty to Assess Learning. IN Educators Speak [column]." Manila Bulletin 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFelipe, Abraham I. "The Duty to Assess Learning. IN Educators Speak [column]." Manila Bulletin, 2003.
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