American Association of School Administrators, Time on Task. Arlington, Va:AASA, 1981.
2.
Brookover, W., et al, Creating Effective Schools, Hotmes Beach Florida: Creating Effective Schools: An In-Service Program for Enhancing School Learning Climate and Achievement.
3.
Hersh, R., What makes some schools and teachers more effective?University of Oregon, Eugene, Oregon:October 25, 1981.
4.
Squires, D.A., Effective Schools And Classrooms: A Research-Based Perspective, Alexandria, Virginia:Association for Supervision and Curriculum Development, 1983.
