Below is the PDF version lecture 11 (Chapter 12), in powerpoint.

PowerPoint Presentation youtube Ch 8 part 1 => https://drive.google.com/file/d/1moq1QQL8cPJAqad7E36P689u14FvESCj/view?usp=sharing

PowerPoint Presentation youtube Ch. 8 part 2 => https://drive.google.com/file/d/1OtorBCSpkIxaP0z9BNmauUb__ADdDLbp/view?usp=sharing