Ojha, J. (1975). Revision of differential aptitude tests for higher seconday schools. Manasayan.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOjha, J.M. Revision of Differential Aptitude Tests for Higher Seconday Schools. Manasayan, 1975.
एमएलए (9वां संस्करण) प्रशस्ति पत्रOjha, J.M. Revision of Differential Aptitude Tests for Higher Seconday Schools. Manasayan, 1975.
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