Maceda, W. (1960). Effective methods of teaching science. Education Quarterly.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMaceda, Wilfrido. "Effective Methods of Teaching Science." Education Quarterly 1960.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMaceda, Wilfrido. "Effective Methods of Teaching Science." Education Quarterly, 1960.
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