Thua thay em la sinh vien cua lop 19b4, vi ly do cong viec em ko den truong hoc tap trung duoc nen ko biet lich trinh hoc hay thong tin gi cua lop. Vay mong thay co the cho em biet lich trinh hoc va thi hay nhung thong tin cua lop K19b4 ( so dt cua giao vien chu nhiem, hoac lop truong?). Xin tran thanh cam on thay!