@misc{indiciae4ddb270033d4,
  title = {Program evaluation: an overview.},
  author = {L B Welch and C Carmody and M Murray and L Rafenski},
  year = {1980},
  url = {https://pubmed.ncbi.nlm.nih.gov/6904832/},
  note = {Source identifier: 6904832}
}