chu nguyetsinh oi:) chu co the ke nhieu nhieu mot chut nua gium duoc khong,tai lieu cua chu sau nay rat huu ich cho con chau doc va khuyen ran nguoi doi " an o co phuoc duc do" chuyen chu ke la chuyen hay nhut trong tat ca nhung loi khuyen ran ve cuoc doi....


ke ham hoc.