1. Anderson, L.W., Evertson, C., and Brophy, J. ?An Experimental Study of Effective Teaching in First Grade Reading Groups?.The Elementary School Journal. 79 (1979), pp. 193?223.
2. Anderson, L.W. ?Instruction and Time-on-task: A Review?.Journal of Curriculum Studies. 13 (1981), No. 4, pp. 289?303.
3. Anderson, L.W. ?Attention, Tasks, and Time?. In Anderson, L.W. (ed.)Time and School Learning: Theory, Research, and Practice. London: Croom Helm Publishers, 1984.
4. Anderson, L.W. ?Teachers, Teaching and Educational Effectiveness?.NASSP Curriculum Report, 1986.
5. Beeby, C.E.Assessment of Indonesian Education. A Guide in Planning. (See especially chapter 4). Oxford: Oxford University Press, 1979.