I think
Planning and Urban Design Standards is a great reference and should be listed for every section except GDSW.
I have also been encouraging people to look at lots of examples. Most of these plan types are easy to find on city websites and it's easier to understand it in context. Comprehensive Plans, Zoning Maps and Codes, Subdivision Regulations, and municipal codes/local codes, urban plans, open space plans, design guidelines are all out there. A good use of your time!