To cite glca in publications use:

Kim Y, Chung H (2020). glca: An R Package for Estimating a Group-Effect in Latent Class Analysis. R package version 1.2.0, https://CRAN.R-project.org/package=glca/.

Corresponding BibTeX entry:

  @Manual{,
    title = {glca: An R Package for Estimating a Group-Effect in Latent
      Class Analysis},
    author = {Youngsun Kim and Hwan Chung},
    year = {2020},
    url = {https://CRAN.R-project.org/package=glca/},
    notes = {R package version 1.2.0},
  }