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Hien e la sinh vien nam thu 3 dai hoc, e dang tim hieu ve viec thi cong san khong dam (san ung luc truoc) nhung hien nay e van chua tim duoc tai lieu nao noi ve san nay. Nay e mo chu de nay mong duoc su giup do cua cac anh chi ve viec thi cong cung nhu cach tinh san nay
Xin cam on !
Xin cam on !