This unbranded textbook is a solid pick for anyone who hates paying extra for logos.
Can the Subaltern Speak? (Paperback or Softback)
This textbook is the one I used for my final year project research.
Rasch Models for Measurement; Quantitative- 080392741X, paperback, David Andrich
You will find that this textbook covers all the core material you need for the course.
Inclusive Group Work
You will find that this textbook is packed with examples that clarify tough ideas.
A TSUNAMI UNFOLDS 2016 Kimiko Kajik & Susan Korman Paperback 2016 VERY GOOD
You will find that this textbook includes a wide range of perspectives on the topic.
Rehab Notes by Ellen A. Hillegass Ellen Z. Hillegass
A nice touch in this textbook is the chapter review crossword puzzles.

