asyncio - Asynchronous I/O, Python Software Foundation, 2025 (Python Software Foundation) - The official documentation for Python's built-in asynchronous I/O framework, detailing async/await syntax, coroutines, and the event loop.
Async, Await, and Concurrency, Sebastián RamÃrez and FastAPI Contributors, 2024 - Documentation on how FastAPI utilizes Python's asynchronous features to handle concurrent requests efficiently.
Fluent Python: Clear, Concise, and Effective Programming, Luciano Ramalho, 2022 (O'Reilly Media) - An authoritative book with a comprehensive section on concurrency, including detailed explanations of Python's asyncio and async/await.