McTighe, J. (n.d.). Understanding by Design. Retrieved from Three Stages of Backward Design: Frequently Asked Questions: mcgrawhillnetworks.com/pdf/White_Papers/8352_networks_UnderstandByDesign_WhitePaper2.pdf

Wiggins, G., & McTighe, J. (1998). Understanding by Design. Alexandria: Association for Supervision and Curriculum Development.

Wiggins, G., & McTighe, J. (2005). Understanding by design (Expanded). Alexandria, VA: Association for Supervision and Curriculum Development.