ArtStation - Proportional Brush Size addon for Blender | Resources
Daily Blender Tip 270: Hide vertices from proportional editing - BlenderNation
Custom Falloff for Proportional Editing - User Feedback - Developer Forum
Amazon.com: Blender 2.8X Introductory-Level Instructional Handout on How to Model and Animate a Sea Turtle: Proportional Editing and Parenting eBook : Samaniego MEd, Adriel: Kindle Store
SOLVED] Is Proportional Editing broken in 2.8? - Modeling - Blender Artists Community