Aggarwal, S. (1991). Three language formula: An educational problem. Gian Pub.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAggarwal, Santosh. Three Language Formula: An Educational Problem. Gian Pub, 1991.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAggarwal, Santosh. Three Language Formula: An Educational Problem. Gian Pub, 1991.
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