Singh,S. P, Parashar,Anil K, & Singh,H. P. (1999). Econometrics and mathematical economics (7th Rev. ed.). S. Chand and Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSingh,S. P, Parashar,Anil K, और Singh,H. P. Econometrics and Mathematical Economics. 7th Rev. ed. New Delhi: S. Chand and Company, 1999.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSingh,S. P, et al. Econometrics and Mathematical Economics. 7th Rev. ed. S. Chand and Company, 1999.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.