To cite package ‘roroph’ in publications use:

  Talingting N (2026). _roroph: Philippine Roll-on/Roll-Off (RoRo)
  Connectivity and Transport Data_. R package version 0.1.1.9999,
  <https://github.com/pinasr/roroph>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {roroph: Philippine Roll-on/Roll-Off (RoRo) Connectivity and Transport
Data},
    author = {NJ Talingting},
    year = {2026},
    note = {R package version 0.1.1.9999},
    url = {https://github.com/pinasr/roroph},
  }