pandas.DataFrame.drop, The pandas development team, 2023 - The official documentation for the pandas.DataFrame.drop method, detailing all its parameters and usage examples.
Python for Data Analysis, Wes McKinney, 2022 (O'Reilly Media) - A authoritative book on data analysis with Python and Pandas, covering data cleaning and manipulation techniques, including dropping data.
Data Cleaning with Pandas and Python, Jonathan Ng, 2023 (Real Python) - A practical online tutorial demonstrating various data cleaning operations in Pandas, including methods for dropping rows and columns based on different criteria.