To cite package ‘MonotonicityTest’ in publications use:

  Huynh D (2025). _MonotonicityTest: Nonparametric Bootstrap Test for
  Regression Monotonicity_. R package version 1.0,
  <https://CRAN.R-project.org/package=MonotonicityTest>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {MonotonicityTest: Nonparametric Bootstrap Test for Regression Monotonicity},
    author = {Dylan Huynh},
    year = {2025},
    note = {R package version 1.0},
    url = {https://CRAN.R-project.org/package=MonotonicityTest},
  }