@misc{indiciae51da7eaebec7,
  title = {Two methods for adapting self-instructional materials to individual differences.},
  author = {R J Melaragno},
  year = {1967},
  doi = {10.1037/h0020044},
  url = {https://pubmed.ncbi.nlm.nih.gov/6076891/},
  note = {Source identifier: 6076891}
}