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• The Variational Principles of Mechanics by Cornelius Lanczos
• Principles of Condensed Matter Physics by Chaikin and Lubenksy
• Quantum Field Theory of Many-Body Systems: From the Origin of Sound to an Origin of Light and Electrons by Xiao-Gang Wen
• Thermodynamics and an Introduction to Thermostatistics by Herbert Callen
• Geometry, Topology, and Physics by Mikio Nakahara
• Mathematical Methods of Classical Mechanics by Arnold
• The Physics of Quantum Mechanics by David Skinner and James Binney
• Quantum Mechanics by Messiah
• Introductory Functional Analysis with Applications by Kreyszig