References
Grolemund, G., and H. Wickham. 2016. R for Data Science. O’Reilly Media.
Prabhakaran, Selva. 2017. R-Statistics.co. http://r-statistics.co/.
Reig, Josep Espasa. 2017. (Very) Basic Steps to Weight a Survey Sample. https://bookdown.org/jespasareig/Book_How_to_weight_a_survey.
RShiny Tutorial. n.d. RStudio. https://shiny.rstudio.com/tutorial/.