To cite package ‘PlotNormTest’ in publications use:

  Tran H, Khattree R (2025). _PlotNormTest: Graphical
  Univariate/Multivariate Assessments for Normality Assumption_. R
  package version 1.0.1,
  <https://CRAN.R-project.org/package=PlotNormTest>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {PlotNormTest: Graphical Univariate/Multivariate Assessments for Normality
Assumption},
    author = {Huong Tran and Ravindra Khattree},
    year = {2025},
    note = {R package version 1.0.1},
    url = {https://CRAN.R-project.org/package=PlotNormTest},
  }