How the 3-needle bind-off is still the best for joining these
Machine knitting (MK) – Page 17 –
Casting on, binding off single bed –
One-stitch seam - decorative joining - Marzena Kołaczek
How to Pick Up Stitches for a Button Band or Collar – Cocoknits
8 Seaming Methods for Knitting - Knitgrammer
Online Resources – Page 3 –
How to do the Mattress Stitch in knitting - Step by step tutorial
Machine knitting (MK) – Page 4 –
How the 3-needle bind-off is still the best for joining these