@article{Willett:121328,
      recid = {121328},
      author = {Willett, Lois Schertz and Kaiser, Harry M. and Streeter,  Deborah H. and Beissner, Katherine L.},
      title = {The Effectiveness of Concept Mapping as a Teaching Tool:  Evidence from Courses in Applied Economics},
      address = {1993-03},
      number = {641-2016-43332},
      series = {SP 93-04},
      pages = {22},
      year = {1993},
      url = {http://ageconsearch.umn.edu/record/121328},
      doi = {https://doi.org/10.22004/ag.econ.121328},
}