@misc{indiciaee5f579e45f44,
  title = {Expanded assessment for discrimination learning with mentally retarded persons: a practical strategy for research and training.},
  author = {D Yu and G L Martin and L Williams},
  year = {1989},
  url = {https://pubmed.ncbi.nlm.nih.gov/2673309/},
  note = {Source identifier: 2673309}
}