00656nam a2200217Ia 4500 TDMU_4965 210410s9999 xx 000 0 und d 510.76 NG527 Nguyễn, Đức Chính Bài tập toán 9 Nguyễn Đức Chính T.2 H. Giáo dục 2005 164tr Sách lớp 9 Bài tập; Toán Dạy và học Tôn, Thân http://lrc.tdmu.edu.vn/opac/search/detail.asp?aID=2&ID=4965 Trung tâm Học liệu Trường Đại học Thủ Dầu Một