diff --git a/activity diagram/phanQuyen_duyetLichLam.drawio b/activity diagram/phanQuyen_duyetLichLam.drawio
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diff --git a/activity diagram/quanLyKho_dinhMuc.drawio b/activity diagram/quanLyKho_dinhMuc.drawio
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diff --git a/activity diagram/quanLyKhuyenMai.drawio b/activity diagram/quanLyKhuyenMai.drawio
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diff --git a/activity diagram/quanLyThucDon&combo.drawio b/activity diagram/quanLyThucDon&combo.drawio
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diff --git a/activity diagram/thongKe_phanTIch.drawio b/activity diagram/thongKe_phanTIch.drawio
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diff --git a/refs/Hệ thống Elearning.pdf b/refs/Hệ thống Elearning.pdf
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