6Dean, C., Hubbell, E., Pitler, H., Stone, B.. Classroom In- struction that Works'. Research-based Strategies for Increasing Stu- dent Achievement (2nd Edition). ASCD, 2011 : 100.
7Cooper, H.. Homework. New York: Longman, 1989.
8Cooper, H., Robinson, J., patall, E.. Does Homework Im- prove Academic Achievement? A Synthesis of Research, 1987-2003 Review of Educational Research, 2006: 76; 1-62.
9Cooper, H.. Homework Research and Policy: A Review of the Literature. http: //conservancy.umn.edu, 2013-11-16.
10Epstein, J., Voorhis, V.. More Than Minutes: Teach- ers' Roles in Designing Homework. Educational Psychologist, 2001, 36 (3) : 181-193.