Form 10-Q June 30, 2015
XBRL Files To download, simply click the link to display the source page, and then right-click and Save As. zgsi-20150630.xml XBRL INSTANCE DOCUMENT zgsi-20150630.xsd XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT zgsi-20150630_cal.xml XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT zgsi-20150630_def.xml XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT zgsi-20150630_lab.xml XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT zgsi-20150630_pre.xml XBRL TAXONOMY EXTENSION…