pandas.DataFrame.sort_values, The pandas development team, 2024 - Provides full details on sorting DataFrames by column values, including parameters like by, ascending, inplace, and na_position.
pandas.DataFrame.sort_index, The pandas development team, 2024 - Presents full information on sorting DataFrames by index labels, covering arguments such as axis, ascending, and inplace.
Python for Data Analysis, Wes McKinney, 2022 (O'Reilly Media) - A standard resource for learning data analysis with Pandas, providing practical guidance on data manipulation techniques like sorting DataFrames. 3rd edition.