Keras Callbacks API, Keras Team, 2024 (TensorFlow) - The official documentation for Keras callbacks, detailing their usage, available methods, and parameters for all built-in callbacks discussed.
Deep Learning, Ian Goodfellow, Yoshua Bengio, and Aaron Courville, 2016 (MIT Press) - A foundational textbook covering the theoretical principles behind deep learning, including optimization algorithms, regularization, and strategies to prevent overfitting, which callbacks help to manage in practice.