Take a look inside Paloma Piano Method Book 4.
This version contains all of Book 4 including parts a & b. It is formatted for 2 sided printing.
You Can Download Book 4 Here
Look Inside Other Method Books:
Book 1, 1a, 1b, 1c Book 2, 2a, 2b Book 3, 3a, 3b Book 4, 4a, 4b