Verge3D for Blender: Shader Nodes Reference — Soft8Soft
Python 2.8 creating Diffuse BSDF in a shader node, when I want it in a surface node - Blender Stack Exchange
Hands - PRINCIPLED BSDF by anul147 on DeviantArt
Here's a free Principled BSDF Shader guide to help Blender users, an extract from the free PDF guide and YouTube tutorial below, hope you find it useful :D : r/learnblender
Principled BSDF Shader Settings for Steel in Blender - Jigasu.Com