To cite tptest in publications use:

  Alkhalaf M (2026). _Universal Turning Point and Inflection Point
  Tests_. doi:10.32614/CRAN.package.tptest
  <https://doi.org/10.32614/CRAN.package.tptest>. R package version
  1.0.3, <https://CRAN.R-project.org/package=tptest>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {Universal Turning Point and Inflection Point Tests},
    author = {Muhammad Abdullah Alkhalaf},
    year = {2026},
    note = {R package version 1.0.3},
    url = {https://CRAN.R-project.org/package=tptest},
    doi = {10.32614/CRAN.package.tptest},
  }