To cite package ‘spaa’ in publications use:

  Zhang J (2025). _spaa: SPecies Association Analysis_. R package
  version 0.2.5, <https://CRAN.R-project.org/package=spaa>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {spaa: SPecies Association Analysis},
    author = {Jinlong Zhang},
    year = {2025},
    note = {R package version 0.2.5},
    url = {https://CRAN.R-project.org/package=spaa},
  }