Alessi, S. R., & Trollip, S. R. (1991). Computer-based instructional methods and developments (2nd ed.). Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Alessi, Stephen R., agus Stanley R. Trollip. Computer-based Instructional Methods and Developments. 2nd ed. Englewood Cliffs, N.J: Prentice-Hall, 1991.
Lua MLA (9ú heag.)Alessi, Stephen R., agus Stanley R. Trollip. Computer-based Instructional Methods and Developments. 2nd ed. Prentice-Hall, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.