Elliott, Daniel C. (2005). Teaching on target: models, strategies, and methods that work. Thousand Oaks, Calif.: Corwin Press. p. 22. ISBN 1412913608. 1412913608
Kimmel, Renee Rosenblum-Lowden with Felicia Lowden (2008). You have to go to school-- you're the teacher!: 300+ classroom management strategies to make your job easier and more fun (3rd ed.). Thousand Oaks, CA: Corwin Press. p. 22. ISBN 978-1412951227. 978-1412951227
Konza, Deslea, and Jessica Grainger, Keith Bradshaw (2001). Classroom Management: A Survival Guide. Cengage Learning Australia. p. 113. ISBN 9780170134156.{{cite book}}: CS1 maint: multiple names: authors list (link) 9780170134156
Burke, Kay (2008). What to do with the kid who: developing cooperation, self-discipline, and responsibility in the classroom (3rd ed.). Thousand Oaks, CA: Corwin Press. p. 173. ISBN 978-1412937016. 978-1412937016