Merging, joining, and concatenating, pandas development team, 2024 - Comprehensive user guide covering the conceptual and practical aspects of combining DataFrames with merge, join, and concat operations.
pandas.merge, pandas development team, 2024 - Official API reference for the pandas.merge function, detailing its parameters and behavior.
pandas.concat, pandas development team, 2024 - Official API reference for the pandas.concat function, providing details on stacking and joining DataFrames or Series.