Mangal, S. K. (2002). Statistics in psychology and education (Second edition.). Prentice-Hall of India Private Ltd..
Lua i Stíl Chicago (17ú heag.)Mangal, S. K. Statistics in Psychology and Education. Second edition. New Delhi: Prentice-Hall of India Private Ltd., 2002.
Lua MLA (8ú heag.)Mangal, S. K. Statistics in Psychology and Education. Second edition. Prentice-Hall of India Private Ltd., 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.