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<https://danavtc.edu.vn/bai-viet/thong-bao-vv-xac-dinh-gia-du-toan-mua-sam-tshhdv>
<https://danavtc.edu.vn/bai-viet/thong-bao-vv-xac-dinh-gia-du-toan-mua-sam-tshhdv>