@misc{indiciae96e673638635,
  title = {Observer evaluation as a tool for field level evaluation of performance.},
  author = {P K Weerakoon and D N Fernando},
  year = {1990},
  doi = {10.3109/01421599009006636},
  url = {https://pubmed.ncbi.nlm.nih.gov/2095448/},
  note = {Source identifier: 2095448}
}