div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=-587f1ef11a28ab350c8b69cbhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: الاعتبارات البصرية و أسس الاضاءة في المباني loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader031vdocumentsnetreader031viewer2022020203587f1ef11a28ab350c8b69cbhtml5thumbnails1jpg width=140 height=200 divdiv