Tri-facta: Multiplication & division game. Learning Resources.
Lua i Stíl Chicago (17ú heag.)Tri-facta: Multiplication & Division Game. Vernon Hills, IL: Learning Resources.
Lua MLA (9ú heag.)Tri-facta: Multiplication & Division Game. Learning Resources.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.