Hien nay minh muon hoc li thay Kim tren hocmai nen ai da dang ki khoa thay Kim thi cho minh gop chung hoac trao doi cac khoa Toan Le Ba Tran Phuong ,hoa Vu Khac Ngoc hoac cac khoa luyen giai de minh da dang ki tren hocmai. Lien lac qua Yahoo [You must be registered and logged in to see this link.]
cam on moi nguoi da doc bai viet!