Davidson, N. (1990). Cooperative learning in mathematics: A handbook for teachers. Addison-Wesley Pub. Co..
Lua i Stíl Chicago (17ú heag.)Davidson, Neil. Cooperative Learning in Mathematics: A Handbook for Teachers. Menlo Park, Calif.: Addison-Wesley Pub. Co., 1990.
Lua MLA (8ú heag.)Davidson, Neil. Cooperative Learning in Mathematics: A Handbook for Teachers. Addison-Wesley Pub. Co., 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.