@misc{indiciaefc9ae8c76661,
  title = {Personalized self-instruction (Keller plan): and educational format for small-group courses.},
  author = {E S Manley},
  year = {1978},
  url = {https://pubmed.ncbi.nlm.nih.gov/712793/},
  note = {Source identifier: 712793}
}