Fraenkel, J. R., & Wallen, N. E. (2009). How to design and evaluate research in education (7th ed.). McGraw-Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFraenkel, Jack R., और Norman E. Wallen. How to Design and Evaluate Research in Education. 7th ed. New York, NY: McGraw-Hill, 2009.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFraenkel, Jack R., और Norman E. Wallen. How to Design and Evaluate Research in Education. 7th ed. McGraw-Hill, 2009.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.