How to Use Blender's new ULTIMATE Shader: Principled — Blender Guru
How to Add Principled BSDF in Blender - cgian.com
When using principled BSDF image texture setup, some faces don't match lighting. Clean up mesh applied, normals correct. Thanks in advance. : r/blenderhelp
Principled BSDF Shader Settings for Steel in Blender - Jigasu.Com
Hands - PRINCIPLED BSDF by anul147 on DeviantArt
Principled BSDF — Blender Manual
Principled BSDF IOR Fix - BlenderNation
The Principled BSDF Shader in Blender | Brandon's Drawings