1. The Effect of University Math on Student Performance in Principles of Economics;D Brasfield;Journal of Research and Development in Education,1992
2. Correspondence
3. Student Time Allocation and Educational Production Functions
4. The Impact of Teachers in Economic Classrooms;N M Browne;Journal of Economics,1991
5. Further Evidence on the Value of Lecture in Elementary Economics;S G Buckles;Journal of Economic Education,1971