@misc{indiciae187e089059e6,
  title = {Learning materials: their use and evaluation.},
  author = {J Nash},
  year = {1999},
  doi = {10.5935/0305-7518.19990028},
  url = {https://pubmed.ncbi.nlm.nih.gov/10603714/},
  note = {Source identifier: 10603714}
}