2019
GSSG Newsletter – Volume XVII #1 – April 2019
GSSG Newsletter – Volume XVII #2 – August 2019
GSSG Newsletter – Volume XVII #3 – December 2019
2018
GSSG Newsletter – Volume XVI #1 – April 2018
GSSG Newsletter – Volume XVI #2 – August 2018
GSSG Newsletter Volume XVI #3 December 2018
2017
GSSG Newsletter – Volume XV #1 – March 2017
GSSG Newsletter – Volume XV #2 – July 2017
GSSG Newsletter – Volume XV #3 – November 2017
2016
GSSG Newsletter – VolumeXIV #1 – April 2016
GSSG Newsletter – Volume XIV #2 – July 2016
GSSG Newsletter Volume XIV #3 – October 2016
2015
GSSG Newsletter – Volume XIII #1 – April 2015
GSSG Newsletter – Volume XIII #2 – July 2015
GSSG Newsletter – Volume XIII #3 – November 2015
2014
GSSG Newsletter – Volume XII #1 – May 2014
GSSG Newsletter – Volume XII #2 – July 2014
GSSG Newsletter – Volume XII #3 – October 2014
2013
GSSG Newsletter – Volume XI #1 – May 2013
GSSG Newsletter – Volume XI #2 – November 2013