CS229 Lecture Notes: Logistic Regression, Andrew Ng, 2012 (Stanford University) - Official lecture notes from a renowned machine learning course, offering a clear and concise explanation of logistic regression's principles and mathematical derivation.
Pattern Recognition and Machine Learning, Christopher M. Bishop, 2006 (Springer)DOI: 10.1007/bpa2_book.2006.100 - A foundational and comprehensive textbook that provides a detailed and mathematically oriented treatment of logistic regression within the context of statistical pattern recognition.