Calling all Keyboard Players (Led Zeppelin Question)

I’ve been playing guitar for some time now and I play Led Zeppelin songs quite often. My wife just started playing the keyboard and wants to learn some Zeppelin songs (i.e. Kashmir, Stairway, All of My Love…), but the problem is this: all I can seem to locate in the way of sheet music is for guitar, bass, and drums. Where might I find sheet music for the keyboard parts? Would they be contained in the bass books? Thanks in advance.

Finding the actual transcribed keyboard parts may be difficult, but the next best thing would be to find a Piano/Vocal book. As you probably know, it’s a piano version of a guitar song, and would probably be more likely to focus on the keyboard parts rather than the guitar parts. Check this out.