To cite package ‘joholearnr’ in publications use:

  Nitta J (2024). _joholearnr: Tutorials for Joho-shori-enshu Class at
  Chiba University_. R package version 0.0.0.9000,
  <https://github.com/joelnitta/joholearnr>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {joholearnr: Tutorials for Joho-shori-enshu Class at Chiba University},
    author = {Joel H. Nitta},
    year = {2024},
    note = {R package version 0.0.0.9000},
    url = {https://github.com/joelnitta/joholearnr},
  }