How to crochet an extended double crochet - UK - YouTube
Learn the Extended Double Crochet Stitch with Step-by-Step Tutorial
CrochetingClub - Extended Stitch Instructions: Extended Single Crochet (esc) - Insert hk into st, yo, pull through, yo, pull through one lp on hk, yo, pull through both lps on hk. Extended
How to Execute the Extended Double Crochet - dummies
How to Execute the Extended Double Crochet - dummies
Extended double crochet tutorial (with edc decrease) - Dora Does