Lua APA (7ú heag.)

(2006). Problem Solving in the PISA & TIMSS 2003 Assessments. U.S. Department of Education.

Lua i Stíl Chicago (17ú heag.)

Problem Solving in the PISA & TIMSS 2003 Assessments. U.S. Department of Education, 2006.

Lua MLA (9ú heag.)

Problem Solving in the PISA & TIMSS 2003 Assessments. U.S. Department of Education, 2006.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.