@misc{indiciae6077c83337bb,
  title = {CONTROLLING STUDENT RESPONSES THROUGH PROGRAMMED VISUAL PRESENTATIONS.},
  author = {G L GROPPER},
  year = {1964},
  doi = {10.2466/pms.1964.18.3.703},
  url = {https://pubmed.ncbi.nlm.nih.gov/14172515/},
  note = {Source identifier: 14172515}
}