@misc{indiciae0a8c496dfba9,
  title = {AN INDUSTRYWIDE STUDY OF PROGRAMED INSTRUCTION.},
  author = {P WELSH and J A ANTOINETTI and P W THAYER},
  year = {1965},
  doi = {10.1037/h0021694},
  url = {https://pubmed.ncbi.nlm.nih.gov/14279761/},
  note = {Source identifier: 14279761}
}