Singh, S. (2007). On education: Guide to educator. Nirmal Book Agency.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSingh, Sukumar. On Education: Guide to Educator. Nirmal Book Agency, 2007.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSingh, Sukumar. On Education: Guide to Educator. Nirmal Book Agency, 2007.
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