Varga, K. Experimental action research in developing countries. A.I.S.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVarga, Karoly. Experimental Action Research in Developing Countries. Cartagena: A.I.S.
एमएलए (9वां संस्करण) प्रशस्ति पत्रVarga, Karoly. Experimental Action Research in Developing Countries. A.I.S.
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