seaborn.barplot, Michael Waskom, 2023 - Official documentation for the seaborn.barplot function, detailing its parameters, usage, and various examples for aggregate statistics and error bars.
Plotting categorical data, Michael Waskom, 2023 (Seaborn Project) - Official Seaborn tutorial illustrating how to visualize relationships between categorical and quantitative variables, including the use of barplot and its variations.
Fundamentals of Data Visualization, Claus O. Wilke, 2019 (O'Reilly Media) - A comprehensive guide to data visualization principles, offering a statistical perspective on how to effectively represent data and interpret elements like error bars in comparative plots.