BAI NGHE PHAN TU VUNG VA MAU CAU LESSON 5 THEME 5 LOP 4 http://thanhiep.pgdductrong.edu.vn/wp-content/uploads/sites/470/2020/04/CD3-Track-28.mp3 http://thanhiep.pgdductrong.edu.vn/wp-content/uploads/sites/470/2020/04/CD3-Track-26.mp3