17 Pham 10, bai so 1-3_ Trung Quan Luan https://langmai.org/wp-content/uploads/2018/12/17-Pham-10-bai-so-1-3_-Trung-Quan-Luan.mp3 “17 Pham 10, bai so 1-3_ Trung Quan Luan”.
