Much broader than just the physics of the Stars interiors.
Also a terrific book:
100 Billion Suns: The Birth, Life, and Death of the Stars
by Rudolf Kippenhahn, Jean Steinberg (Translator)
lecture 14 is regarding the nuclear processes internal to a star with more detail than in the book I referenced above.
I've had already added Hyperphysics to my favorites. Thanks for the links.