To cite package ‘bssbinom’ in publications use:

  Costa EG (2025). “Bayesian Sample Size for Binomial Proportions with
  Applications in R.” In Awe OO, Vance EA (eds.), _Practical
  Statistical Learning and Data Science Methods: Case Studies from LISA
  2020 Global Network, USA_, chapter 14, 325-339. Springer Nature
  Switzerland, Cham. doi:10.1007/978-3-031-72215-8_14
  <https://doi.org/10.1007/978-3-031-72215-8_14>.

A BibTeX entry for LaTeX users is

  @InBook{,
    title = {Bayesian Sample Size for Binomial Proportions with Applications in R},
    author = {Eliardo G. Costa},
    editor = {O. Olawale Awe and Eric A. Vance},
    booktitle = {Practical Statistical Learning and Data Science Methods: Case Studies from LISA 2020 Global Network, USA},
    publisher = {Springer Nature Switzerland},
    address = {Cham},
    year = {2025},
    pages = {325--339},
    chapter = {14},
    doi = {10.1007/978-3-031-72215-8_14},
  }