div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader039vdocumentssitereader039viewer20220221195e251f4a2f71d049c65e0f7ahtml5page1jpg target=_blank img data-url=webhcmuseduvnwebhcmuseduvnmingtpchkhoahchngthppdf-lituhthngiahtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: webhcmuseduvnwebhcmuseduvnming_tp_ch_khoa_hc_h_ng_thppdf · LituhThángia et bài báo däng chí Khoa hoc pc ong hap Kính glii: Cán bQ giång viên các truðng loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader039vdocumentssitereader039viewer20220221195e251f4a2f71d049c65e0f7ahtml5thumbnails1jpg width=140 height=200 adivdiv