@misc{indiciae055eea5bde96,
  title = {DISCRIMINATION TEST WORD DIFFICULTY.},
  author = {R A CAMPBELL},
  year = {1965},
  doi = {10.1044/jshr.0801.13},
  url = {https://pubmed.ncbi.nlm.nih.gov/14311800/},
  note = {Source identifier: 14311800}
}