pandas.DataFrame.rename, The pandas development team, 2024 - Official documentation for the .rename() method in Pandas, detailing its use for columns and index labels.
pandas.DataFrame.columns, The pandas development team, 2024 - Official documentation for the DataFrame.columns attribute, explaining direct assignment for renaming all columns.
Python for Data Analysis, Wes McKinney, 2022 (O'Reilly Media) - A widely referenced book covering data manipulation in Pandas, including techniques for data cleaning and preparation.