Barkley, E. F. Student engagement techniques: A handbook for college faculty.
Lua i Stíl Chicago (17ú heag.)Barkley, Elizabeth F. Student Engagement Techniques: A Handbook for College Faculty.
Lua MLA (8ú heag.)Barkley, Elizabeth F. Student Engagement Techniques: A Handbook for College Faculty.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.