div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=qs-4019-th-28-july-2010-th-15-april-2013-th-6-august-2016-th-6-august-2013-worldwidehtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: · QS 4019 th 28 July 2010 th 15 April 2013 th 6 August 2016 th 6 August 2013 WORLDWIDE QUALITY ASSURANCE This certificate remains the property of Worldwide Quality Assurance Ltd loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsusreader034viewer20220424185f33fc680d784b0df71b3da7html5thumbnails1jpg width=140 height=200 divdiv