ADAMS, K. A. L. (2015). Research methods, statistics, and applications. Sage Publications.
Lua i Stíl Chicago (17ú heag.)ADAMS, Kathrynn A. Lawrence. Research Methods, Statistics, and Applications. Sage Publications, 2015.
Lua MLA (9ú heag.)ADAMS, Kathrynn A. Lawrence. Research Methods, Statistics, and Applications. Sage Publications, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.