APA (7 वां संस्करण) प्रशस्ति पत्र

singh, D. (1997). Theory andanalysis of sample survey design (1st edition.). New Age.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

singh, Daroga. Theory Andanalysis of Sample Survey Design. 1st edition. New Delhi: New Age, 1997.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

singh, Daroga. Theory Andanalysis of Sample Survey Design. 1st edition. New Age, 1997.