Link ppt:https://docs.google.com/presentation/d/1EXu0n7nb_FIQ0AhhGvKWes5KD92qmaHt/edit?usp=drive_link
Link pdf: https://drive.google.com/file/d/11ZkDljv1lxJZdo3SxJBi_sBq3vIxe52i/view?usp=drive_link
Đóng góp tài liệu cho chúng tôi: https://forms.gle/jbipNz7PbiSS7JYp7