Trương Vĩnh Ký
Google Gadget - "Google Docs Viewer"
Lê Thanh
Nguồn: https://tusachtiengviet.com/images/file/cND1se4m1QgQAA4F/truong-vinh-ky.pdf
Nguồn: https://tusachtiengviet.com/images/file/cND1se4m1QgQAA4F/truong-vinh-ky.pdf
Google Gadget - "Steegle.com - Google Sites Like Button"