Informational articles and publications on GABA in general, as well as specifically GABA Oolong tea  from various other resources and experts.

 Understanding GABA - Dr. Michael Breus (aka The Sleep Doctor)

Positive effects of GABA tea in reducing stress - recent study - University of Sydney,

What is GABA -  links to various scientific research articles included 

A Biochemist’s Experience with GABA - Phyllis J. Bronson, PhD

GABA Oolong Tea reviews and comments by renown Tea Bloggers and Influencers.

Tea and Me Co

Destination Tea

Fresh Steeps

Go Eat Your Bread with Joy

Matt-meals