@misc{indiciae1821b4e423aa,
  title = {A program evaluation of classroom data collection with bar codes.},
  author = {M D Saunders and J L Saunders and R R Saunders},
  doi = {10.1016/0891-4222(93)90002-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/8469795/},
  note = {Source identifier: 8469795}
}