To cite package ‘exametrika’ in publications use:

  Koji Kosugi (2024). _exametrika: Test Theory Analysis and
  Biclustering_. R package version 1.1.0,
  <https://github.com/kosugitti/exametrika>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {exametrika: Test Theory Analysis and Biclustering},
    author = {{Koji Kosugi}},
    year = {2024},
    note = {R package version 1.1.0},
    url = {https://github.com/kosugitti/exametrika},
  }