Patternmaking with Stretch Knit Fabrics by Julie Cole must be one of the most comprehensive patternmaking books out there. Here are my thoughts on it.
Apparel Pattern Making: A Guide for Fashion Designers
Introduction to Knit Fabrics
How to Test the Stretch of a Knit fabric & Sizing down the Master
New Pattern Making Digital Blocks - 1st Class Patterns
Do Knit Fabrics Have a Bias? 3 Hours Past the Edge of the World
Pattern School Online - Principle Stretch Direction
Instructions For Draping With Stretch Knits Stretch Fabric
Stretch Basics for Patternmaking 3: Challenges for Non-Standard
Patternmaking with Stretch Knit Fabrics -review - The Shapes of Fabric